number

How to find the version and build number of macOS installed on your computer

16/01/2022 by

Sometimes situations arise when the user needs to know not only the version, but also the build number of the operating system installed on his Mac. Typically, this information is needed when the device is running a beta version or when completing a bug report sent by Apple.

Following the instructions posted below, you can easily determine the version running on macOS and its build number.

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Why you need to know the operating system version and build number

This data may be needed when installing software, which, for example, supports some versions of macOS. This information is also important for beta testers who need to check which build of the beta version of the OS is installed on the device. In addition, when filling out a bug report on the form, be sure to include the macOS version and build number in order for Apple to reproduce the problem.

♥ BY TOPIC: Task Manager on Mac: how to open and use.

How to find the version and build number of macOS

1. On the desktop of your computer, click the Apple () symbol in the menu bar.

2. Select “About this Mac“.

The macOS version is displayed right below the heading “macOS“.

3. Click the version number to see the build number.

Even if the macOS version numbers are the same, the build numbers that are installed on Macs may differ. For example, after purchasing a new Mac, users may notice that the same OS version may have a different build number than other computers. It just means that newer Macs have a more recent version of the assembly installed. If the assembly is already out of date, you can update it using the tab Updates v Mac App Store.

See also:

How to resize and number of Launchpad app icons on macOS

09/01/2022 by

Surely, not all macOS users are satisfied with the size and number of icons in Launchpad. Indeed, why did not Apple provide for the ability to change these seemingly simple parameters, after all, in the same Finder, this is possible? In our material, we will tell you how to change the size and number of application icons in Launchpad using the standard macOS tools.

♥ ON TOPIC: Launchpad on Mac: what it is and how to set it up correctly to use it.

In iOS, the number and position of icons also cannot be changed without jailbreak, but there, at least depending on the diagonal of the device, the number of icons in the grid varies. In macOS, it doesn’t matter what kind of Mac you have, with 11-inches on board or 27 – the same grid will be everywhere – 7 icons in a row and five in columns. Moreover, if on the compact 11 ” MacBook Air it looks just great, and the usability does not suffer at all, then on the 27 ” giant iMac one gets the impression that a person with low vision is working. It’s time to restore justice!

♥ ON TOPIC: How to change the icon of an application, folder or file on Mac (macOS).

How to customize the Launchpad icon grid on macOS

In order to implement your plan, you need to use the Terminal (you can find it through the explorer Finder → Programs → Utilities or by using the search Spotlight…

one… Indicate the number of icons in a row. The parameter “N“. By default, there are 7 icons:

defaults write com.apple.dock springboard-columns -int N

Let’s put eight and press the key Enter (Return):

defaults write com.apple.dock springboard-columns -int 8

2… Now change the number of icons in the columns. By default, there are 5 icons. We also change the parameter “N“:

defaults write com.apple.dock springboard-rows -int N

Let’s put for example 6 and press the key Enter:

defaults write com.apple.dock springboard-rows -int 6

3… You must restart Launchpad for any changes to take effect. This is done using the following command:

killall Dock

At the end press Enter (Return) and in a couple of moments get ready to taste the result of your activity.

When executing this command, the sorting of icons by folders will not be disturbed and you will not have to re-place all application icons to your liking (create folders, move icons to them and transfer icons between desktops).

If you don’t like the result and you want to return everything to square one, then everything is decided by entering the following commands (after entering each, press Enter (Return) on the keyboard):

defaults delete com.apple.dock springboard-rows
defaults delete com.apple.dock springboard-columns
killall Dock

Thus, having devoted 10 minutes to this moment, you can achieve an ideal result, in which both the icons will be of a comfortable size for you, and their number on the Launchpad field.

In the comments, you can write about what Mac you have and the ideal grid size that you have achieved experimentally. You look, and other users will not have to suffer =).

On my iMac 27 ’’, I’m most comfortable working with a 6×8 grid.

See also:

How to forward a contact (phone number) from iPhone to iPhone or Android

12/12/2021 by

It might seem like sending your or someone else’s contact information to another person using an iPhone is easy, as Apple has probably made the process as easy as possible. However, this is not the case, which is very strange for a company that is trying to make its software as easy as possible for its users.

Sending contacts to another person is not the most difficult task, but not the easiest one either. Before submitting a data card, make sure you include only the information you want to share. Some users write in their card personal information (for example, phone numbers) that is not intended for prying eyes, so make sure that there is nothing extra in it before sending it.

♥ ON TOPIC: How to delete multiple contacts from iPhone at once.

How to forward any contact from an iPhone to another person

1. Open the app “Telephone” or “Contacts”…

2. Select the required contact.

3. Scroll down the page until the option appears. “Share contact”…

4. Click on the item “Share contact” and select the method of sending the selected contact, for example, via e-mail.

If the person you are sending contacts to is nearby and has an iPhone, you can use the AirDrop function. If the recipient doesn’t appear in the AirDrop list on your phone, ask them to activate the feature in “Control Center” on your iPhone and select the option “For all”…

Since Apple uses the vCard standard, which is supported by all popular platforms, you can also send contacts via email, text message, or using a third-party messenger.

See also:

How to find the model, ID, and part number of your MacBook Pro, Air, iMac, and Mac mini

04/12/2021 by

Not every Apple computer user can accurately name the model of their Mac, especially if several years have passed since the purchase. In the material below, we’ll show you how to find the model and model ID of your MacBook Pro, MacBook, MacBook Air, iMac, or Mac mini.

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The nuance is that it is not necessary to know the Mac model right after purchase, but over time this information may come in handy when installing new software, contacting technical support or a service center.

♥ ON TOPIC: How to customize Control Center in macOS.

The content of the article

How to find the model, model ID, and part numbers of your MacBook Pro, Air, iMac, and Mac mini So, the easiest way to find the model of any Mac is by using the serial number, which can be found underAbout this Mac»The main menu  of the operating system.

How to find the model, model ID, and part number of your MacBook Pro, Air, iMac, and Mac mini

This number should then be entered on the maintenance eligibility check page (link)

How to find the model, model ID, and part number of your MacBook Pro, Air, iMac, and Mac mini

or in the search box on the Apple Specifications page (link) to get the full computer model name like “iMac (Retina 5K, 27-inch, 2019)”.

How to find the model, model ID, and part number of your MacBook Pro, Air, iMac, and Mac mini

If, for some reason, it is not possible to determine the model using the serial number, then you can use alternative identifiers. To do this, you need a device model number, you can find it on the packaging in which the computer was delivered. Further, you just need to find this article in the list of Apple computers below and determine the model of your MacBook Pro, MacBook, MacBook Air, iMac or Mac mini. Please note that the two “XX” before the “/” (eg MLH12XX / A) may differ depending on the country in which the device was purchased.

In addition, there is another additional option for identifying your Mac model. To do this, you need to find out the model identifier (displayed in the main menu section  → “About this Mac»→ “System report” → “Hardware”) Or model number (found on the computer packaging or receipt).

How to find the model, model ID, and part number of your MacBook Pro, Air, iMac, and Mac mini

This should be checked against the table below to identify your MacBook Pro, Air, iMac, and Mac mini model.

♥ ON TOPIC: USB-C vs Thunderbolt 3 – What’s the Difference?

Identifying your MacBook Pro model and part number

2021 year

MacBook Pro (14-inch, 2021)
Colors: silver, space gray
Model Identifier: MacBookPro18,3, MacBookPro18,4
Items: MKGP3xx / A, MKGQ3xx / A, MKGR3xx / A, MKGT3xx / A

MacBook Pro (16-inch, 2021)
Colors: silver, space gray
Model Identifier: MacBookPro18,1, MacBookPro18,2
Items: MK183xx / A, MK193xx / A, MK1A3xx / A, MK1E3xx / A, MK1F3xx / A, MK1H3xx / A

2020 year

MacBook Pro (13-inch, 2020 M1)

MacBook Pro (13-inch, 2020 M1)
Colors: silver, space gray
Model Identifier: MacBookPro17,1
Items: MYD83xx / A, MYD92xx / A, MYDA2xx / A, MYDC2xx / A

MacBook Pro (13-inch, 2020, Dual Thunderbolt 3)
Colors: silver, space gray
Model Identifier: MacBookPro16,3
Items: MXK32xx / A, MXK52xx / A, MXK62xx / A, MXK72xx / A

MacBook Pro (13-inch, 2020, Four Thunderbolt 3 Ports)
Colors: silver, space gray
Model Identifier: MacBookPro16,2
Items: MWP42xx / A, MWP52xx / A, MWP62xx / A, MWP72xx / A, MWP82xx / A

2019 year

MacBook Pro (13-inch, 2020, Dual Thunderbolt 3)

MacBook Pro (16-inch, 2019)
Colors: silver, space gray
Model Identifier: MacBookPro16,1, MacBookPro16,4
Items: MVVJ2xx / A, MVVK2xx / A, MVVL2xx / A, MVVM2xx / A

MacBook Pro (13-inch, 2019, Dual Thunderbolt 3)
Colors: silver, space gray
Model Identifier: MacBookPro15,4
Items: MUHN2xx / A, MUHP2xx / a, MUHQ2xx / A, MUHR2xx / A, MUHR2xx / B

MacBook Pro (15-inch, 2019)
Colors: silver, space gray
Model Identifier: MacBookPro15,1, MacBookPro15,3
Items: MV902xx / A, MV912xx / A, MV922xx / A, MV932xx / A, MV942xx / A, MV952xx / A

MacBook Pro (13-inch, 2019, Four Thunderbolt 3 Ports)
Colors: silver, space gray
Model Identifier: MacBookPro15,2
Items: MV962xx / A, MV972xx / A, MV982xx / A, MV992xx / A, MV9A2xx / A

2018 year

MacBook Pro (13-inch, 2019, Dual Thunderbolt 3)

MacBook Pro (15-inch, 2018)
Colors: silver, space gray
Model Identifier: MacBookPro15,1
Items: MR932xx / A, MR942xx / A, MR952xx / A, MR962xx / A, MR972xx / A and MUQH2xx / A

MacBook Pro (13-inch, 2018, Four Thunderbolt 3 Ports)
Colors: silver, space gray
Model Identifier: MacBookPro15,2
Items: MR9Q2xx / A, MR9R2xx / A, MR9T2xx / A, MR9U2xx / A, MR9V2xx / A

2017 year

MacBook Pro (15-inch, 2017)

MacBook Pro (15-inch, 2017)
Colors: silver, space gray
Model Identifier: MacBookPro14,3
Items: MPTR2xx / A, MPTT2xx / A, MPTU2xx / A, MPTV2xx / A, MPTW2xx / A, MPTX2xx / A

MacBook Pro (13-inch, 2017, Four Thunderbolt 3 Ports)
Colors: silver, space gray
Model Identifier: MacBookPro14,2
Items: MPXV2xx / A, MPXW2xx / A, MPXX2xx / A, MPXY2xx / A, MQ002xx / A, MQ012xx / A

MacBook Pro (13-inch, 2017, Dual Thunderbolt 3)
Colors: silver, space gray
Model Identifier: MacBookPro14,1
Items: MPXQ2xx / A, MPXR2xx / A, MPXT2xx / A, MPXU2xx / A

2016 year

MacBook Pro (15-inch, 2017)

MacBook Pro (15-inch, 2016)
Colors: silver, space gray
Model Identifier: MacBookPro13,3
Items: MLH32xx / A, MLH42xx / A, MLH52xx / A, MLW72xx / A, MLW82xx / A, MLW92xx / A

MacBook Pro (13-inch, 2016, Four Thunderbolt 3 Ports)
Colors: silver, space gray
Model Identifier: MacBookPro13,2
Items: MLH12xx / A, MLVP2xx / A, MNQF2xx / A, MNQG2xx / A, MPDK2xx / A, MPDL2xx / A

MacBook Pro (13-inch, 2016, Dual Thunderbolt 3)
Colors: silver, space gray
Model Identifier: MacBookPro13,1
Items: MLL42xx / A, MLUQ2xx / A

2015 year

MacBook Pro (Retina, 15-inch, Mid 2015)

MacBook Pro (Retina, 15-inch, Mid 2015)
Model Identifier: MacBookPro11,4
Article: MJLQ2xx / A

MacBook Pro (Retina, 15-inch, Mid 2015)
Model Identifier: MacBookPro11,5
Items: MJLT2xx / A, MJLU2xx / A

MacBook Pro (Retina, 13-inch, Early 2015)
Model Identifier: MacBookPro12,1
Items: MF839xx / A, MF840xx / A, MF841xx / A, MF843xx / A

2014 year

MacBook Pro (Retina, 15-inch, Mid 2014)

MacBook Pro (Retina, 15-inch, Mid 2014)
Model Identifier: MacBookPro11,2
Article: MGXA2xx / A

MacBook Pro (Retina, 15-inch, Mid 2014)
Model Identifier: MacBookPro11,3
Article: MGXC2xx / A

MacBook Pro (Retina, 13-inch, Mid 2014)
Model Identifier: MacBookPro11,1
Items: MGX72xx / A, MGX82xx / A, MGX92xx / A

2013 year

MacBook Pro (Retina, 15-inch, Mid 2014)

MacBook Pro (Retina, 15-inch, Late 2013)
Model Identifier: MacBookPro11,2
Article: ME293xx / A

MacBook Pro (Retina, 15-inch, Late 2013)
Model Identifier: MacBookPro11,3
Article: ME294xx / A

MacBook Pro (Retina, 15-inch, Early 2013)
Model Identifier: MacBookPro10,1
Items: ME664xx / A, ME665xx / A

MacBook Pro (Retina, 13-inch, Late 2013)
Model Identifier: MacBookPro11,1
Items: ME864xx / A, ME865xx / A, ME866xx / A

MacBook Pro (Retina, 13-inch, Early 2013)
Model Identifier: MacBookPro10,2
Items: MD212xx / A, ME662xx / A

2012 year

MacBook Pro (Retina, 15-inch, Mid 2012)

MacBook Pro (Retina, 15-inch, Mid 2012)
Model Identifier: MacBookPro10,1
Items: MC975xx / A, MC976xx / A

MacBook Pro (15-inch Mid 2012)
Model Identifier: MacBookPro9,1
Items: MD103xx / A, MD104xx / A

MacBook Pro (Retina, 13-inch, Late 2012)
Model Identifier: MacBookPro10,2
Items: MD212xx / A, MD213xx / A

MacBook Pro (13-inch Mid 2012)
Model Identifier: MacBookPro9,2
Items: MD101xx / A, MD102xx / A

2011 year

MacBook Pro (Retina, 15-inch, Mid 2012)

MacBook Pro (17-inch Late 2011)
Model Identifier: MacBookPro8,3
Article: MD311xx / A
Latest Compatible Operating System Version: macOS High Sierra 10.13.6

MacBook Pro (17-inch, Early 2011)
Model Identifier: MacBookPro8,3
Part number: MC725xx / A
Latest Compatible Operating System Version: macOS High Sierra 10.13.6

MacBook Pro (15-inch Late 2011)
Model Identifier: MacBookPro8,2
Items: MD322xx / A, MD318xx / A
Latest Compatible Operating System Version: macOS High Sierra 10.13.6

MacBook Pro (15-inch, Early 2011)
Model Identifier: MacBookPro8,2
Items: MC723xx / A, MC721xx / A
Latest Compatible Operating System Version: macOS High Sierra 10.13.6

MacBook Pro (13-inch Late 2011)
Model Identifier: MacBookPro8,1
Items: MD314xx / A, MD313xx / A
Latest Compatible Operating System Version: macOS High Sierra 10.13.6

MacBook Pro (13-inch, Early 2011)
Model Identifier: MacBookPro8,1
Items: MC724xx / A, MC700xx / A
Latest Compatible Operating System Version: macOS High Sierra 10.13.6

2010 year

MacBook Pro (17-inch, Early 2011)

MacBook Pro (17-inch Mid 2010)
Model Identifier: MacBookPro6,1
Code: MC024xx / A
Latest Compatible Operating System Version: macOS High Sierra 10.13.6

MacBook Pro (15-inch Mid 2010)
Model Identifier: MacBookPro6,2
Items: MC373xx / A, MC372xx / A, MC371xx / A
Latest Compatible Operating System Version: macOS High Sierra 10.13.6

MacBook Pro (13-inch Mid 2010)
Model Identifier: MacBookPro7,1
Items: MC375xx / A, MC374xx / A
Latest Compatible Operating System Version: macOS High Sierra 10.13.6

2009 year

MacBook Pro (17-inch, Early 2011)

MacBook Pro (17-inch Mid 2009)
Model Identifier: MacBookPro5,2
Code: MC226xx / A
Latest Compatible Operating System: OS X El Capitan 10.11.6

MacBook Pro (17-inch, Early 2009)
Model Identifier: MacBookPro5,2
Code: MB604xx / A
Latest Compatible Operating System: OS X El Capitan 10.11.6

MacBook Pro (15-inch Mid 2009)
Model Identifier: MacBookPro5,3
Items: MB985xx / A, MB986xx / A
Latest Compatible Operating System: OS X El Capitan 10.11.6

MacBook Pro (15-inch, 2.53 GHz Mid 2009)
Model Identifier: MacBookPro5,3
Code: MC118xx / A
Latest Compatible Operating System: OS X El Capitan 10.11.6

MacBook Pro (13-inch Mid 2009)
Model Identifier: MacBookPro5,5
Items: MB991xx / A, MB990xx / A
Latest Compatible Operating System: OS X El Capitan 10.11.6

2008 year

MacBook Pro (17-inch, Early 2011)

MacBook Pro (15-inch Late 2008)
Model Identifier: MacBookPro5,1
Items: MB470xx / A, MB471xx / A
Latest Compatible Operating System: OS X El Capitan 10.11.6

MacBook Pro (17-inch, Early 2008)
Model Identifier: MacBookPro4,1
Code: MB166xx / A
Latest Compatible Operating System: OS X El Capitan 10.11.6

MacBook Pro (15-inch, Early 2008)
Model Identifier: MacBookPro4,1
Items: MB133xx / A, MB134xx / A
Latest Compatible Operating System: OS X El Capitan 10.11.6

♥ ON TOPIC: 10 useful multitouch gestures for your MacBook trackpad.

Identifying your MacBook Air model and part number

2020 year

MacBook Air (Retina, M1, 13-inch, 2020)

MacBook Air (Retina, M1, 13-inch, 2020)
Colors: space gray, gold, silver
Model Identifier: MacBookAir10,1
Items: MGN63xx / A, MGN93xx / A, MGND3xx / A, MGN73xx / A, MGNA3xx / A, MGNE3xx / A

MacBook Air (Retina, 13-inch, 2020)
Colors: space gray, gold, silver
Model Identifier: MacBookAir9,1
Items: MVH22xx / A, MVH42xx / A, MVH52xx / A, MWTJ2xx / A, MWTK2xx / A, MWTL2xx / A

2019 year

MacBook Air (Retina, 13-inch, 2019)

MacBook Air (Retina, 13-inch, 2019)
Colors: space gray, gold, silver
Model Identifier: MacBookAir8,2
Items: MVFH2xx / A, MVFJ2xx / A, MVFK2xx / A, MVFL2xx / A, MVFM2xx / A, MVFN2xx / A, MVH62xx / A, MVH82xx / A

2018 year

MacBook Air (Retina, 13-inch, 2019)

MacBook Air (Retina, 13-inch, 2018)
Colors: space gray, gold, silver
Model Identifier: MacBookAir8,1
Items: MRE82xx / A, MREA2xx / A, MREE2xx / A, MRE92xx / A, MREC2xx / A, MREF2xx / A, MUQT2xx / A, MUQU2xx / A, MUQV2xx / A

2017 year

MacBook Air (13-inch, 2017)

MacBook Air (13-inch, 2017)
Model Identifier: MacBookAir7,2
Items: MQD32xx / A, MQD42xx / A, MQD52xx / A

2015 year

MacBook Air (13-inch, Early 2015)

MacBook Air (13-inch, Early 2015)
Model Identifier: MacBookAir7,2
Items: MJVE2xx / A, MJVG2xx / A, MMGF2xx / A, MMGG2xx / A

MacBook Air (11-inch, Early 2015)
Model Identifier: MacBookAir7,1
Items: MJVM2xx / A, MJVP2xx / A

2014 year

MacBook Air (13-inch, Early 2014)

MacBook Air (13-inch, Early 2014)
Model Identifier: MacBookAir6,2
Items: MD760xx / B, MD761xx / B

MacBook Air (11-inch, Early 2014)
Model Identifier: MacBookAir6,1
Items: MD711xx / B, MD712xx / B

2013 year

MacBook Air (13-inch, Early 2014)

MacBook Air (13-inch Mid 2013)
Model Identifier: MacBookAir6,2
Items: MD760xx / A, MD761xx / A

MacBook Air (13-inch, Early 2014)

MacBook Air (11-inch Mid 2013)
Model Identifier: MacBookAir6,1
Items: MD711xx / A, MD712xx / A

2012 year

MacBook Air (13-inch Mid 2012)

MacBook Air (13-inch Mid 2012)
Model Identifier: MacBookAir5,2
Items: MD231xx / A, MD232xx / A

MacBook Air (13-inch Mid 2012)

MacBook Air (11-inch Mid 2012)
Model Identifier: MacBookAir5,1
Items: MD223xx / A, MD224xx / A

2011 year

MacBook Air (13-inch Mid 2011)

MacBook Air (13-inch Mid 2011)
Model Identifier: MacBookAir4,2
Items: MC965xx / A, MC966xx / A
Latest Compatible Operating System Version: macOS High Sierra 10.13.6

MacBook Air (11-inch Mid 2011)
Model Identifier: MacBookAir4,1
Items: MC968xx / A, MC969xx / A
Latest Compatible Operating System Version: macOS High Sierra 10.13.6

2010 year

MacBook Air (13-inch Mid 2011)

MacBook Air (13-inch Late 2010)
Model Identifier: MacBookAir3,2
Items: MC503xx / A, MC504xx / A
Latest Compatible Operating System Version: macOS High Sierra 10.13.6

MacBook Air (11-inch Late 2010)
Model Identifier: MacBookAir3,1
Items: MC505xx / A, MC506xx / A
Latest Compatible Operating System Version: macOS High Sierra 10.13.6

2009 year

MacBook Air (13-inch Mid 2011)

MacBook Air (Mid 2009)
Model Identifier: MacBookAir2,1
Items: MC505xx / A, MC233xx / A, MC234xx / A
Latest Compatible Operating System: OS X El Capitan 10.11.6

♥ ON TOPIC: How to remove a USB flash drive, removable disk (drive), etc. on macOS (7 ways).

Identifying your iMac model and part number

2021 year

iMac (24-inch, M1 chip, 2021)
Ports: Two Thunderbolt / USB 4 ports, Two USB 3 ports
Colors: silver, pink, blue, green, purple, orange, yellow
Model Identifier: iMac21,1
Items: MGPC3xx / A, MGPD3xx / A, MGPF3xx / A, MGPG3xx / A, MGPH3xx / A, MGPJ3xx / A, MGPK3xx / A, MGPL3xx / A, MGPM3xx / A, MGPN3xx / A, MGPP3xx / A, MGPQ3xx / A MGPR3xx / A, MGPT3xx / A

iMac (24-inch, M1 chip, 2021)
Ports: Two Thunderbolt / USB 4 ports
Colors: silver, pink, blue, green
Model Identifier: iMac21,2
Items: MGTF3xx / a, MJV83xx / a, MJV93xx / a, MJVA3xx / a

2020 year

iMac (Retina 5K, 27-inch, 2020)

iMac (Retina 5K, 27-inch, 2020)
Model Identifier: iMac20,1, iMac20,2
Items: MXWT2xx / A, MXWU2xx / A, MXWV2xx / A

2019 year

iMac (Retina 5K, 27-inch, 2019)

iMac (Retina 5K, 27-inch, 2019)
Model Identifier: iMac19,1
Items: MRQYxx / A, MRR0xx / A, MRR1xx / A

iMac (Retina 4K, 21.5-inch, 2019)
Model Identifier: iMac19,2
Items: MRT3xx / A, MRT4xx / A, MHK23xx / A

2017 year

iMac Pro

iMac Pro
Model Identifier: iMacPro1,1
Items: MQ2Y2xx / A, MHLV3xx / A

iMac (Retina 5K, 27-inch, 2017)
Model Identifier: iMac18,3
Items: MNE92xx / A, MNEA2xx / A, MNED2xx / A

iMac (Retina 4K, 21.5-inch, 2017)
Model Identifier: iMac18,2
Items: MNDY2xx / A, MNE02xx / A

iMac (21.5-inch, 2017)
Идентификатор модели: iMac18,1
Артикул: MMQA2xx/A, MHK03xx/A

2015 г

iMac (с дисплеем Retina 5K, 27 дюймов, конец 2015 г.)

iMac (с дисплеем Retina 5K, 27 дюймов, конец 2015 г.)
Идентификатор модели: iMac17,1
Артикулы: MK462xx/A, MK472xx/A, MK482xx/A

iMac (с дисплеем Retina 4K, 21,5 дюйма, конец 2015 г.)
Идентификатор модели: iMac16,2
Артикул: MK452xx/A

iMac (21,5 дюйма, конец 2015 г.)
Идентификатор модели: iMac16,1
Артикулы: MK142xx/A, MK442xx/A

iMac (с дисплеем Retina 5K, 27 дюймов, середина 2015 г.)
Идентификатор модели: iMac15,1
Артикул: MF885xx/A

2014 г

iMac (с дисплеем Retina 5K, 27 дюймов, середина 2015 г.)

iMac (с дисплеем Retina 5K, 27 дюймов, конец 2014 г.)
Идентификатор модели: iMac15,1
Артикул: MF886xx/A

iMac (21,5 дюйма, середина 2014 г.)

iMac (21,5 дюйма, середина 2014 г.)
Идентификатор модели: iMac14,4
Артикулы: MF883xx/A, MG022xx/A

2013 г

iMac (21,5 дюйма, середина 2014 г.)

iMac (27 дюймов, конец 2013 г.)
Идентификатор модели: iMac14,2
Артикулы: ME086xx/A, ME088xx/A

iMac (21,5 дюйма, конец 2013 г.)
Идентификатор модели: iMac14,1
Артикулы: ME086xx/A, ME087xx/A

2012 г

iMac (27 дюймов, конец 2012 г.)

iMac (27 дюймов, конец 2012 г.)
Идентификатор модели: iMac13,2
Артикулы: MD095xx/A, MD096xx/A

iMac (21,5 дюйма, конец 2012 г.)
Идентификатор модели: iMac13,1
Артикулы: MD093xx/A, MD094xx/A

2011 г

iMac (27 дюймов, середина 2011 г.)

iMac (27 дюймов, середина 2011 г.)
Идентификатор модели: iMac12,2
Артикулы: MC813xx/A, MC814xx/A
Последняя совместимая версия операционной системы: macOS High Sierra 10.13.6

iMac (21,5 дюйма, середина 2011 г.)
Идентификатор модели: iMac12,1
Артикулы: MC309xx/A, MC812xx/A
Последняя совместимая версия операционной системы: macOS High Sierra 10.13.6

2010 г

iMac (27 дюймов, середина 2010 г.)

iMac (27 дюймов, середина 2010 г.)
Идентификатор модели: iMac11,3
Артикулы: MC510xx/A, MC511xx/A
Последняя совместимая версия операционной системы: macOS High Sierra 10.13.6

iMac (27 дюймов, середина 2010 г.)

iMac (21,5 дюйма, середина 2010 г.)
Идентификатор модели: iMac11,2
Артикулы: MC508xx/A, MC509xx/A
Последняя совместимая версия операционной системы: macOS High Sierra 10.13.6

2009 г

iMac (27 дюймов, конец 2009 г.)
Идентификатор модели: iMac10,1
Артикулы: MB952xx/A, MB953xx/A
Последняя совместимая версия операционной системы: macOS High Sierra 10.13.6

iMac (27 дюймов, середина 2010 г.)

iMac (21,5 дюйма, конец 2009 г.)
Идентификатор модели: iMac10,1
Артикулы: MB950xx/A, MB413xx/A
Последняя совместимая версия операционной системы: macOS High Sierra 10.13.6

iMac (24 дюйма, начало 2009 г.)
Идентификатор модели: iMac9,1
Артикулы: MB418xx/A, MB419xx/A
Последняя совместимая версия операционной системы: OS X El Capitan 10.11.6

iMac (20 дюймов, начало 2009 г.)
Идентификатор модели: iMac9,1
Артикулы: MB417xx/A, MC019xx/A
Последняя совместимая версия операционной системы: OS X El Capitan 10.11.6

♥ ON TOPIC: Секреты поиска Spotlight на Mac.

Определение модели и артикула Mac mini

2020 г

Mac mini (M1, 2020)

Mac mini (M1, 2020)
Идентификатор модели: Macmini9,1
Артикулы: MGNR3xx/A, MGNT3xx/A

2018 г

Mac mini (2018 г.)

Mac mini (2018 г.)
Идентификатор модели: Macmini8,1
Артикулы: MRTR2xx/A, MRTT2xx/A, MXNF2xx/A, MXNG2xx/A

2014 г

Mac mini (конец 2014 г.)

Mac mini (конец 2014 г.)
Идентификатор модели: Macmini7,1
Артикулы: MGEM2xx/A, MGEN2xx/A, MGEQ2xx/A

2012 г

Mac mini (конец 2014 г.)

Mac mini (конец 2012 г.)
Идентификатор модели: Macmini6,1; Macmini6,2
Артикулы: MD387xx/A; MD388xx/A, MD389xx/A

2011 г

Mac mini (конец 2014 г.)

Mac mini (середина 2011 г.)
Идентификатор модели: Macmini5,1; Macmini5,2
Артикулы: MC815xx/A; MC816xx/A, MC936xx/A
Последняя совместимая версия операционной системы: macOS High Sierra 10.13.6

2010 г

Mac mini (конец 2014 г.)

Mac mini (середина 2010 г.)
Идентификатор модели: Macmini4,1
Артикулы: MC438xx/A, MC270xx/A
Последняя совместимая версия операционной системы: macOS High Sierra 10.13.6

2009 г

Mac mini (конец 2009 г.)

Mac mini (конец 2009 г.)
Идентификатор модели: Macmini3,1
Артикулы: MC238xx/A, MC239xx/A, MC408xx/A
Последняя совместимая версия операционной системы: OS X El Capitan 10.11.6

Mac mini (конец 2009 г.)

Mac mini (начало 2009 г.)
Идентификатор модели: Macmini3,1
Артикулы: MB464xx/A, MB463xx/A
Последняя совместимая версия операционной системы: OS X El Capitan 10.11.6

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Определение модели и артикула MacBook

2017 г

MacBook (с дисплеем Retina, 12 дюймов, 2017 г.)

MacBook (с дисплеем Retina, 12 дюймов, 2017 г.)
Цвета: «розовое золото», «серый космос», золотой, серебристый
Идентификатор модели: MacBook10,1
Артикулы: MNYF2XX/A, MNYG2XX/A, MNYH2XX/A, MNYJ2XX/A, MNYK2XX/A, MNYL2XX/A, MNYM2XX/A, MNYN2XX/A

2016 г

MacBook (с дисплеем Retina, 12 дюймов, начало 2016 г.)

MacBook (с дисплеем Retina, 12 дюймов, начало 2016 г.)
Цвета: «розовое золото», «серый космос», золотой, серебристый
Идентификатор модели: MacBook9,1
Артикулы: MLH72xx/A, MLH82xx/A, MLHA2xx/A, MLHC2xx/A, MLHE2xx/A, MLHF2xx/A, MMGL2xx/A, MMGM2xx/A

2015 г

MacBook (с дисплеем Retina, 12 дюймов, начало 2016 г.)

MacBook (с дисплеем Retina, 12 дюймов, начало 2015 г.)
Цвета: «серый космос», золотой, серебристый
Идентификатор модели: MacBook8,1
Артикулы: MF855xx/A, MF865xx/A, MJY32xx/A, MJY42xx/A, MK4M2xx/A, MK4N2xx/A

2010 г

MacBook (13 дюймов, середина 2010 г.)

MacBook (13 дюймов, середина 2010 г.)
Идентификатор модели: MacBook7,1
Артикулы: MB516xx/A
Последняя совместимая версия операционной системы: macOS High Sierra 10.13.6

2009 г

MacBook (13 дюймов, середина 2010 г.)

MacBook (13 дюймов, конец 2009 г.)
Идентификатор модели: MacBook6,1
Артикулы: MC207xx/A
Последняя совместимая версия операционной системы: macOS High Sierra 10.13.6

MacBook (13 дюймов, середина 2010 г.)

MacBook (13 дюймов, середина 2009 г.)
Идентификатор модели: MacBook5,2
Артикулы: MC240xx/A
Последняя совместимая версия операционной системы: OS X El Capitan 10.11.6

MacBook (13 дюймов, середина 2010 г.)

MacBook (13 дюймов, начало 2009 г.)
Идентификатор модели: MacBook5,2
Артикулы: MB881xx/A
Последняя совместимая версия операционной системы: OS X El Capitan 10.11.6

See also:

How to change your phone number in Viber and not lose contacts and correspondence

24/11/2021 by

The developers of the Viber messenger have introduced a function that allows users to easily change their phone number without losing their account, correspondence and contacts. Now, in order to change the phone number in Viber, there is no need to perform complex manipulations – the necessary tools are present in the program for iPhone or Android itself.

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How to change your phone number in Viber without losing your correspondence and contacts

1… Launch the Viber app on iPhone or Android.

2… Click the “Yet” and follow the path “Settings” → “Account” → “Change phone number “…

3… At this stage, the user will be presented with two options:

“New phone number “ (binding to a new number without reinstalling Viber) and “New phone number and new device “ (in this case, you must first create a backup copy of contacts and correspondence, and then link to another number).

Keep in mind that it is only possible to restore a backup copy of an account within one platform. That is, the correspondence saved on Android can only be restored on another Android device. The situation is similar on the iPhone.

4… Select the option you want and follow the instructions on the screen.

Attention! Make sure that the new phone number you specified can receive calls or SMS.

After changing the number, all users from your address book will receive a corresponding notification.

See also:

November 24, 2021

Tags: iFaq.

How to hide a number in Telegram

20/11/2021 by

The Internet is a global network that is built on the exchange of information. It is not surprising that the issues of its safety and confidentiality are gradually coming to the fore. The largest companies are doing this, promising users to keep their data from unauthorized access.

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Privacy is gradually becoming the cornerstone of most Internet services, which is why Telegram is actively involved in this issue. New functions are constantly appearing in this messenger, which are aimed at ensuring the privacy of its users. At first, the developers made it possible to delete any messages, and then they allowed them to be blocked partially or completely. Not so long ago, another interesting function appeared – to hide the user’s phone number. Not sure how you can do this? We will help!

Telegram emphasizes that it does not provide the Russian authorities with confidential information of its users and does not provide an opportunity to associate a user’s name with his phone number. Nevertheless, many people still link the phone to their account. First of all, it simply makes it easier to register with the service. And this approach helps to strengthen the security of the account, using two-factor authentication. But showing your phone number to strangers is probably not worth it.

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How to hide a phone number in Telegram

1. To hide the display of the phone number associated with the Telegram messenger account, you need to start the client itself and go to it “Settings”…

2. In the section “Confidentiality” go to tab “Phone number”…

3. In this window, you can select those who can see your number. It can be generally all Telegram users, only your contacts, or no one at all.

4. Here in the section Exceptions you can add those who can always see your number or never at all.

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Who can even see your Telegram number?

Only in the summer of 2019, thanks to the next update, Telegram got the opportunity to hide a user’s phone number. Nevertheless, it will not be possible to completely hide it from everyone. If someone already knows your phone number, they will still be able to see it. But you, in response, will also be able to see the phone numbers of other users, if they are present in your address book.

See also:

Track aircraft by number online: best iPhone apps

12/11/2021 by

Those who fly constantly just need to know the flight schedule so as not to miss the plane or find out that the flight is delayed or canceled altogether. There are a number of flight tracking apps that will provide you with invaluable service. While many airlines generally have their own applications, individual flight tracking programs offer more accurate information in most cases.

In addition, they will be a great solution if you use the services of several airlines.

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Most popular free aircraft tracking app.

The Flightradar24 app has the most essential features, including: allows you to monitor planes in real time, find out about the flight that is currently flying over you and view information about it, simply by pointing your iPhone or iPad at the sky.

In addition, users have access to detailed information about the flight history, as well as tools for searching and filtering flights by airline, plane, altitude, speed, etc.

Download Flightradar24 for iPhone and iPad

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Aircraft Live: Aircraft Radar

Ideal for: Travelers on a budget and those who enjoy observing and identifying planes and helicopters in the sky.

The Planes Live app is a great option for both tourists and those people who just like to watch airplanes. The program can track aircraft around the world.

Aircraft Live offers information related to airports: take-off and arrival times of aircraft, time zone data, local time, weather forecast, etc. If you live near an airport, the application will provide an opportunity to observe the planes.

With smart filters, you can track a specific aircraft or manufacturer, and even watch airliners flying at a specified altitude, speed, or going to a specific airport.

Download Planes Live for iPhone and iPad

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App in the Air

Ideal for: Those who constantly fly and spend a lot of time on board.

App in the Air is not just a flight tracking application, but a multifunctional virtual assistant. Each flight can be divided into four stages: check-in, landing, take-off and landing. The application tracks each of these stages, offering data on the time it will take to check in, go through pre-flight security, customs control, etc.

In addition, the app shows useful information regarding the airport, including the current weather forecast, flight delays, exchange rates, and some tips and tricks. For example, where at the airport is the best cafe, Wi-Fi hotspots, etc.

However, you will have to make an in-app purchase to get more features. In addition, a subscription is required to access your flight status or take advantage of the automatic check-in feature.

App in the Air is free to download (includes in-app purchases). The app works on iPhone, iPad and even Apple Watch.

Download App in the Air for iPhone and iPad

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FlightStats

Ideal for: Travelers on a budget looking for real-time information.

The application allows you to view information about flights. To do this, you need to enter the flight number, airport name and route. Information for each flight is displayed on the map, including city names, flight path, radar data, and more. Apple Watch owners can use the companion app to quickly view flight details.

The application also allows you to view information related to the desired airports – data on delayed flights, weather forecasts, etc. With the Today Widget, you can see certain flight information without opening the app. Although FlightStats is free, unobtrusive ads in the app can spoil the experience.

Download FlightStats for iPhone

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FlightAware Flight Tracker

Perfect for: Those looking for a simple flight tracking app with PUSH notifications.

FlightAware Flight Tracker provides information on not only commercial, but also private and charter flights in the United States and Canada. You can search for flight information by specifying the aircraft registration number (alphanumeric code on board the aircraft), route, airline, flight number, corresponding cities or airport code.

FlightAware Flight Tracker displays complete flight information as well as a map with weather data. The app will send notifications with information about take-off and arrival times, flight cancellations, delays, etc. The program is compatible with iPhone and iPad, and a one-time in-app purchase will get rid of ads.

Download FlightAware Flight Tracker for iPhone and iPad

See also:

How to find all Internet accounts associated with your email or phone number

16/09/2021 by

Since we started working on the web, most of us have created a huge number of accounts in various online services. But today we hardly use even half of them. And the email address or phone number is ultimately misused. Let’s try to find all the accounts associated with your email address.

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This will require a review of all your accounts in general to update the data in them or deactivate them. Here are some ways to help you solve the problem and find all the accounts linked to your mailbox or phone number.

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Search for accounts associated with email (e-mail)

If you frequently log into apps and websites using a quick login button based on your email, then you most likely won’t have to do a deep investigation to see the most recently created accounts.

To view profiles created with the popular option “Login with Google Account”, just go to your email security settings. There you can see the list of connected applications in order to edit it or revoke access.

This section in Google can be opened by going to the control panel “My Account” by this link and there on the left by clicking on the section “Security“. Scroll down to “Third-party apps with account access“. It will list the apps that were signed in with your Google account. Click on the “Configure access for third-party apps“, Which will make it possible to unlink programs from your account.

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Search for registrations using social networking accounts Vkontakte, Facebook and Twitter

Now let’s try to find those applications and sites that were logged in using social media accounts. In fact, the risks are increased when third-party services use their social media profiles. Depending on the permissions, you run the risk of transferring important confidential information to strangers in the form of a list of your friends, personal data, cell phone number, and more.

Fortunately, on platforms such as Vkontakte, it is possible to decide which services to give access to, and which to disable. So, you can keep access to an outside service, but disable it from accessing the pages you like on Facebook.

Vkontakte follow the path Settings -> Application Settings -> Connected Sites and Apps…
On Facebook go to Settings → Apps and sites.
On Twitter (web) go to More → Settings & Privacy → Apps & Sessions.

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Search in the “Inbox” for emails with verification messages

The two previous methods deal with simple authentication options. Now we will do a more thorough check. To do this, you will need to enter your e-mail and find letters confirming registration there. You will need to search for standard words in the header, because services send emails with similar templates when registering.

In addition, in Gmail, you can use search operators and keywords to filter specific topics. For example, when you enter the phrase in the search box subject: verify all letters with the word in the subject will be displayed verify… This will detect virtually all registrations and attachments associated with your email address.

You can automate this task using an online tool like EmailExport. This site will analyze your emails with powerful filters and then organize the results in a spreadsheet. Although this service is not free, it can save you a lot of time. But even here it is worth being vigilant. The third-party service will get permission to read your Inbox, which puts you at risk of personal data leakage. EmailExport works for free with the first hundred messages, and if this number is exceeded, you will have to pay about $ 5 for each subsequent 250 messages processed.

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Instantly check all email related accounts

Another effective method on our list of ways to find accounts associated with your email is the Deseat online service. This utility will index your mailbox and highlight all third-party applications that were registered with this email address. Then the user is presented with a list of services for making a decision.

Deseat also adds a button “Delete”… When you click on it, an email will be sent to the selected service with a request to delete your data.

Like EmailExport, this service can also pose a threat to the security and confidentiality of information. The developers assure that they do not collect your letters, and all sorting operations are carried out locally. Deseat is currently free and supports most major email platforms.

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Find all online accounts with username

If you often enter your username when creating a new account, then the Namechk service will help to summarize the information. Dozens of platforms will be searched using the Free Domain Search and Username Validation tool. You just need to enter your most used ID in the search bar at the top of the page and Namechk will tell you where this account was used. The service can check many resources: Instagram, Vkontakte, YouTube, Facebook, Twitter and many others. And this utility is free.

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Checking saved accounts in your browser

Whenever you fill out forms on the Internet, your browser caches your data. This saves a lot of time, since you do not have to constantly enter the same word in the required field every time. This approach works with email addresses and optionally passwords as well.

This makes it possible to go into the browser settings and see a list of saved credentials, even those that you have long forgotten about. Please note that success will directly depend on how long you have been using the browser. This process can be repeated for any program of this kind that you have used in the past.

In Google Chrome, this option is present in the section Setup → Autocomplete → Passwords… You can view the entries, update and delete them if they do not need to be stored in the browser for security reasons.
In Mozilla Firefox, users need to go to Settings -> Privacy & Security -> Logins and Passwords -> Saved Logins…

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Sort online accounts with a password manager

It is unlikely to find all the online accounts that you have created over the course of a long time on the Internet. However, our proposed solutions will allow you to find most of the registrations.

Once the information is collected, it is best to transfer it to a password manager and use it regularly to easily monitor your online presence.

See also:

How to find the version and build number of macOS installed on your computer

08/02/2021 by ALOK DAS

Sometimes there are situations when a user needs to know not only the version, but also the build number of the operating system installed on his Mac. Typically, this information is needed if the device is running beta or when completing an error report sent by Apple.

By following the instructions below, you can easily determine the version running on macOS and its build number.

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Why you need to know the operating system version and build number

This data may be needed when installing software, which, for example, supports some versions of macOS. This information is also important for beta testers who need to check which build of the beta version of the OS is installed on the device. In addition, when filling out a bug report, you must include the macOS version and build number in the form so that Apple can reproduce the problem.

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How to find the version and build number of macOS

1. On your computer desktop, click the Apple () symbol in the menu bar.

2. Select “About this Mac“.

The macOS version is displayed right under the heading “macOS“.

3. Click the version number to find the build number.

Even if the macOS version numbers are the same, the build numbers that are installed on Mac computers may differ. For example, after purchasing a new Mac, users may notice that with the same OS version, the build number may differ from those installed on other computers. This just means that a more recent version of the assembly is installed on the new Macs. If the assembly is already out of date, you can update it using the tab Updates in Mac App Store…

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How to resize and number of Launchpad app icons on macOS

07/02/2021 by ALOK DAS

Surely, not all macOS users are satisfied with the size and number of icons in Launchpad. Indeed, why hasn’t Apple provided the ability to change these seemingly simple parameters, because in the same Finder this is possible? In our material, we will tell you how to change the size and number of application icons in Launchpad using standard macOS tools.

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In iOS, the number and position of icons also cannot be changed without jailbreak, but there, at least depending on the diagonal of the device, the number of icons in the grid varies. In macOS, it doesn’t matter what kind of Mac you have, with 11-inches on board or 27 – the grid will be the same everywhere – 7 icons in a row and five in columns. Moreover, if on the compact 11 ” MacBook Air it looks just great, and the usability does not suffer at all, then on the 27 ” giant iMac one gets the impression that a person with low vision is working. It’s time to restore justice!

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How to customize the Launchpad icon grid on macOS

In order to implement your plan, you need to use the Terminal (you can find it through the explorer Finder → Programs → Utilities or using the search Spotlight…

one… Specify the number of icons in a row. The parameter “N“. By default, there are 7 icons:

defaults write com.apple.dock springboard-columns -int N

Let’s put eight and press the key Enter (Return):

defaults write com.apple.dock springboard-columns -int 8

2… Now change the number of icons in the columns. By default, there are 5 icons. We also change the parameter “N“:

defaults write com.apple.dock springboard-rows -int N

Let’s put for example 6 and press the key Enter:

defaults write com.apple.dock springboard-rows -int 6

3… You must restart Launchpad for any changes to take effect. This is done using the following command:

killall Dock

Finally press Enter (Return) and in a couple of moments get ready to taste the result of your activity.

If you don’t like the result and you want to return everything to square one, then everything is solved by entering the following commands (after entering each, press Enter (Return) on the keyboard):

defaults delete com.apple.dock springboard-rows
defaults delete com.apple.dock springboard-columns
killall Dock

Thus, having devoted 10 minutes to this moment, you can achieve an ideal result, in which both the icons will be of a comfortable size for you, and their number on the Launchpad field.

In the comments, you can write about what Mac you have and the ideal grid size that you have achieved experimentally. You look, and other users will not have to suffer =).

On my iMac 27 ’’, I’m most comfortable working with a 6×8 grid.

See also:

How to block a number on iPhone, how to view and remove numbers from the blacklist

13/01/2021 by ALOK DAS

Cold calls (when you don’t expect someone to call you), unpleasant or just annoying people – from time to time each of us really wants to use the services of the so-called “black list”. But not everyone knows how to do it! A short educational program on the topic awaits you below.

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Video instruction:

What happens if you block someone’s number on iPhone

If an unwanted number is blocked (added to the “black list”) on the iPhone, the caller will not be able to call you – his handset will always be “busy”. In this case, you will not receive any notifications – i.e. do not know if the blocked number called.

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How to block a number on an iPhone

1. On your iPhone, open the program Telephone (green icon with a white tube);

2. Open the tab Recent or Contacts;

3. Find the number you want to add to the blacklist;

4. Click on the icon with the letter “i “ (Information) to the right of it;

5. Scroll down the page to the very end and click on the caption Block subscriber…

6. Confirm the action.

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How to view blocked numbers on iPhone and, if desired, unblock a subscriber

If you decide that you do not need a blocked contact for one reason or another, do the following:

1. Open the app Settings;

2. Find the section in the list Telephone;

3. Go to the section Blocked contacts;

4. Click Edit and then on a white “minus” in a red circle to remove a number from the list of blocked ones or swipe from right to left and press Unblock…

Now this subscriber will be able to call you.

See also:

Yandex.Telephony, or how to set up a virtual “cloud” number for an individual or company

19/12/2020 by ALOK DAS

Yandex.Telephony virtual PBX will help to cope with the flow of calls and organize teamwork. The service can be used by freelancers, startups and other users for whom constant communication with clients is important. Yandex.Telephony allows you to respond to customers in the office and anywhere else.

What is “Virtual PBX”

Virtual PBX – a service provided for companies (freelancers, individuals, etc.) that allows you to replace a physical PBX or an entire call center – the client gets at full disposal an IP-PBX hosted by the provider.

♥ BY TOPIC: Review of the Tenda Nova MW3 mesh system, or how to make seamless Wi-Fi anywhere.

Possibilities of the Yandex.Telephony service

Let’s consider the use of a virtual PBX using the example of the Yandex.Telephony service, which is a virtual PBX that allows you to effectively manage the processing of customer requests (calls, voice messages, feedback forms on the website, as well as on Facebook or Twitter) without installing additional equipment and unnecessary financial costs. For the convenience of users, all messages are displayed in a single feed.

Users registered in the system are provided with a local multichannel phone number (more than 150 telephone city codes throughout Russia are available). The platform offers a number of functions, including the ability to process messages from a website or social network, collect statistics of calls, manage the settings of the voice menu for prompt communication with the right specialist, call queue settings for more efficient work with clients, forward calls to depending on the working schedule of operators and the status of the caller, as well as save customer requests in voice messages.

The service supports popular SIP clients for processing incoming and outgoing messages. The platform also allows you to create black and white lists, which will help you focus on your most important customers and save time by not wasting it on useless calls.

Service users will be able to manage calls through the telephone interface, forward them within the company or combine them into conferences, receive notifications about client requests, missed calls and listen to voicemail on a smartphone.

Yandex.Telephony provides quick access to information in a browser or mobile application, call and message history, and also allows you to store call records for resolving disputes or assessing the work of employees and generate statistics for each employee.

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What devices does it work on and how much does it cost

Yandex’s virtual PBX is available in the web version on any computer, as well as through mobile applications for Android and iOS (iPhone). You can get detailed information about Yandex.Telephony tariffs on the service page.

As an alternative to Yandex.Telephony, we also suggest that you familiarize yourself with the foreign service Zadarma, which we talked about here.

See also:

How to hide a number in Telegram

17/12/2020 by ALOK DAS

♥ BY TOPIC: “Saving data”, or how to enable saving of mobile traffic on the iPhone.

Privacy is gradually becoming the cornerstone of most Internet services, which is why Telegram is actively involved in this issue. New functions constantly appear in this messenger, which are aimed at ensuring the privacy of its users. First, the developers made it possible to delete any messages, and then they allowed to block their transfer in part or completely. Not so long ago, another interesting function appeared – to hide the user’s phone number. Not sure how you can do this? We will help!

Telegram emphasizes that it does not provide the Russian authorities with confidential information of its users and does not provide an opportunity to associate a user’s name with his phone number. Nevertheless, many still link the phone to their account. First of all, it simply makes it easier to register with the service. And this approach helps to strengthen the security of the account, using two-factor authentication. But you probably shouldn’t show your phone number to strangers.

♥ BY TOPIC: How to prepare for your trip and save your places of visit in Google Maps on your iPhone or Android in advance.

How to hide a phone number in Telegram

1. To hide the display of the phone number associated with the Telegram messenger account, you need to start the client itself and go to it “Settings”…

2. In the section “Confidentiality” go to tab “Phone number”…

3. In this window, you can select those who can see your number. It can be generally all Telegram users, only your contacts, or no one at all.

4. Here in the section Exceptions you can add those who can always see your number or never at all.

♥ BY TOPIC: Why do Accept and Reject buttons disappear on an incoming call on iPhone?

Who can even see your Telegram number?

Only in the summer of 2019, thanks to the next update, Telegram got the opportunity to hide a user’s phone number. Nevertheless, it will not be possible to completely hide it from everyone. If someone already knows your phone number, they can still see it. But you, in response, will also be able to see the phone numbers of other users, if they are present in your address book.

See also:

How to find the model, ID, and part number of your MacBook Pro, Air, iMac, and Mac mini

25/11/2020 by ALOK DAS

Not every Apple computer user can accurately name the model of their Mac, especially if several years have passed since the purchase. In the article below, we’ll show you how to find the model and model ID of your MacBook Pro, MacBook, MacBook Air, iMac, or Mac mini.

♥ BY TOPIC: Notification Center in macOS Big Sur. How to invoke, configure and optimize.

The nuance is that it is not necessary to know the Mac model immediately after purchase, but over time this information can be useful when installing new software, contacting technical support or a service center.

♥ BY TOPIC: How to customize Control Center in macOS Big Sur.

How to find the model, model ID, and part number of your MacBook Pro, Air, iMac, and Mac mini

So, the easiest way to find out the model of any Mac is using the serial number, it can be found in the section “About this Mac»Main menu  operating system.

This number should then be entered on the maintenance eligibility check page (link)

or in the search box on the Apple Specifications page (link) to get the full computer model name like “iMac (Retina 5K, 27-inch, 2019)”.

If for some reason it is not possible to determine the model using the serial number, then you can use alternative identifiers. To do this, you need the device model number, you can find it on the packaging in which the computer was delivered. Further, you just need to find this article in the list of Apple computers below and determine the model of your MacBook Pro, MacBook, MacBook Air, iMac or Mac mini. Please note that the two “XX” before the “/” (eg MLH12XX / A) may differ depending on the country in which the device was purchased.

In addition, there is another additional option to identify your Mac model. To do this, you need to find out the model identifier (displayed in the main menu section  → “About this Mac»→ “System report” → “Hardware”) Or model number (found on the computer packaging or on your receipt).

This should be checked against the table below to identify your MacBook Pro, Air, iMac, and Mac mini model.

♥ BY TOPIC: USB-C vs Thunderbolt 3 – What’s the Difference?

Identifying your MacBook Pro model and part number

2020 year

MacBook Pro (13-inch, 2020 M1)
Colors: silver, space gray
Model Identifier: MacBookPro17,1
Items: MYD83xx / A, MYD92xx / A, MYDA2xx / A, MYDC2xx / A

MacBook Pro (13-inch, 2020, Dual Thunderbolt 3)
Colors: silver, space gray
Model Identifier: MacBookPro16,3
Items: MXK32xx / A, MXK52xx / A, MXK62xx / A, MXK72xx / A

MacBook Pro (13-inch, 2020, Four Thunderbolt 3 Ports)
Colors: silver, space gray
Model Identifier: MacBookPro16,2
Items: MWP42xx / A, MWP52xx / A, MWP62xx / A, MWP72xx / A, MWP82xx / A

2019 year

MacBook Pro (16-inch, 2019)
Colors: silver, space gray
Model Identifier: MacBookPro16,1, MacBookPro16,4
Items: MVVJ2xx / A, MVVK2xx / A, MVVL2xx / A, MVVM2xx / A

MacBook Pro (13-inch, 2019, Dual Thunderbolt 3)
Colors: silver, space gray
Model Identifier: MacBookPro15,4
Items: MUHN2xx / A, MUHP2xx / a, MUHQ2xx / A, MUHR2xx / A, MUHR2xx / B

MacBook Pro (15-inch, 2019)
Colors: silver, space gray
Model Identifier: MacBookPro15,1, MacBookPro15,3
Items: MV902xx / A, MV912xx / A, MV922xx / A, MV932xx / A, MV942xx / A, MV952xx / A

MacBook Pro (13-inch, 2019, Four Thunderbolt 3 Ports)
Colors: silver, space gray
Model Identifier: MacBookPro15,2
Items: MV962xx / A, MV972xx / A, MV982xx / A, MV992xx / A, MV9A2xx / A

2018 year

MacBook Pro (15-inch, 2018)
Colors: silver, space gray
Model Identifier: MacBookPro15,1
Items: MR932xx / A, MR942xx / A, MR952xx / A, MR962xx / A, MR972xx / A and MUQH2xx / A

MacBook Pro (13-inch, 2018, Four Thunderbolt 3 Ports)
Colors: silver, space gray
Model Identifier: MacBookPro15,2
Items: MR9Q2xx / A, MR9R2xx / A, MR9T2xx / A, MR9U2xx / A, MR9V2xx / A

2017 year

MacBook Pro (15-inch, 2017)
Colors: silver, space gray
Model Identifier: MacBookPro14,3
Items: MPTR2xx / A, MPTT2xx / A, MPTU2xx / A, MPTV2xx / A, MPTW2xx / A, MPTX2xx / A

MacBook Pro (13-inch, 2017, Dual Thunderbolt 3)
Colors: silver, space gray
Model Identifier: MacBookPro14,1
Items: MPXQ2xx / A, MPXR2xx / A, MPXT2xx / A, MPXU2xx / A

2016 year

MacBook Pro (15-inch, 2016)
Colors: silver, space gray
Model Identifier: MacBookPro13,3
Items: MLH32xx / A, MLH42xx / A, MLH52xx / A, MLW72xx / A, MLW82xx / A, MLW92xx / A

MacBook Pro (13-inch, 2016, Dual Thunderbolt 3)
Colors: silver, space gray
Model Identifier: MacBookPro13,1
Items: MLL42xx / A, MLUQ2xx / A

2015 year

MacBook Pro (Retina, 15-inch, Mid 2015)
Model Identifier: MacBookPro11,4
Article: MJLQ2xx / A

MacBook Pro (Retina, 15-inch, Mid 2015)
Model Identifier: MacBookPro11,5
Items: MJLT2xx / A, MJLU2xx / A

MacBook Pro (Retina, 13-inch, Early 2015)
Model Identifier: MacBookPro12,1
Items: MF839xx / A, MF840xx / A, MF841xx / A, MF843xx / A

2014 year

MacBook Pro (Retina, 15-inch, Mid 2014)
Model Identifier: MacBookPro11,2
Article: MGXA2xx / A

MacBook Pro (Retina, 15-inch, Mid 2014)
Model Identifier: MacBookPro11,3
Article: MGXC2xx / A

MacBook Pro (Retina, 13-inch, Mid 2014)
Model Identifier: MacBookPro11,1
Items: MGX72xx / A, MGX82xx / A, MGX92xx / A

2013 year

MacBook Pro (Retina, 15-inch, Late 2013)
Model Identifier: MacBookPro11,2
Article: ME293xx / A

MacBook Pro (Retina, 15-inch, Late 2013)
Model Identifier: MacBookPro11,3
Article: ME294xx / A

MacBook Pro (Retina, 15-inch, Early 2013)
Model Identifier: MacBookPro10,1
Items: ME664xx / A, ME665xx / A

MacBook Pro (Retina, 13-inch, Late 2013)
Model Identifier: MacBookPro11,1
Items: ME864xx / A, ME865xx / A, ME866xx / A

MacBook Pro (Retina, 13-inch, Early 2013)
Model Identifier: MacBookPro10,2
Items: MD212xx / A, ME662xx / A

2012 year

MacBook Pro (Retina, 15-inch, Mid 2012)
Model Identifier: MacBookPro10,1
Items: MC975xx / A, MC976xx / A

MacBook Pro (15-inch Mid 2012)
Model Identifier: MacBookPro9,1
Items: MD103xx / A, MD104xx / A

MacBook Pro (Retina, 13-inch, Late 2012)
Model Identifier: MacBookPro10,2
Items: MD212xx / A, MD213xx / A

MacBook Pro (13-inch Mid 2012)
Model Identifier: MacBookPro9,2
Items: MD101xx / A, MD102xx / A

2011 year

MacBook Pro (17-inch Late 2011)
Model Identifier: MacBookPro8,3
Article: MD311xx / A
Latest Compatible Operating System: macOS High Sierra 10.13.6

MacBook Pro (17-inch, Early 2011)
Model Identifier: MacBookPro8,3
Part number: MC725xx / A
Latest Compatible Operating System: macOS High Sierra 10.13.6

MacBook Pro (15-inch Late 2011)
Model Identifier: MacBookPro8,2
Items: MD322xx / A, MD318xx / A
Latest Compatible Operating System: macOS High Sierra 10.13.6

MacBook Pro (15-inch, Early 2011)
Model Identifier: MacBookPro8,2
Items: MC723xx / A, MC721xx / A
Latest Compatible Operating System: macOS High Sierra 10.13.6

MacBook Pro (13-inch Late 2011)
Model Identifier: MacBookPro8,1
Items: MD314xx / A, MD313xx / A
Latest Compatible Operating System: macOS High Sierra 10.13.6

MacBook Pro (13-inch, Early 2011)
Model Identifier: MacBookPro8,1
Items: MC724xx / A, MC700xx / A
Latest Compatible Operating System: macOS High Sierra 10.13.6

2010 year

MacBook Pro (17-inch Mid 2010)
Model Identifier: MacBookPro6,1
Code: MC024xx / A
Latest Compatible Operating System: macOS High Sierra 10.13.6

MacBook Pro (15-inch Mid 2010)
Model Identifier: MacBookPro6,2
Items: MC373xx / A, MC372xx / A, MC371xx / A
Latest Compatible Operating System: macOS High Sierra 10.13.6

MacBook Pro (13-inch Mid 2010)
Model Identifier: MacBookPro7,1
Items: MC375xx / A, MC374xx / A
Latest Compatible Operating System: macOS High Sierra 10.13.6

2009 year

MacBook Pro (17-inch Mid 2009)
Model Identifier: MacBookPro5,2
Part number: MC226xx / A
Latest Compatible Operating System: OS X El Capitan 10.11.6

MacBook Pro (17-inch, Early 2009)
Model Identifier: MacBookPro5,2
Code: MB604xx / A
Latest Compatible Operating System: OS X El Capitan 10.11.6

MacBook Pro (15-inch Mid 2009)
Model Identifier: MacBookPro5,3
Items: MB985xx / A, MB986xx / A
Latest Compatible Operating System: OS X El Capitan 10.11.6

MacBook Pro (15-inch, 2.53GHz, Mid 2009)
Model Identifier: MacBookPro5,3
Code: MC118xx / A
Latest Compatible Operating System: OS X El Capitan 10.11.6

MacBook Pro (13-inch Mid 2009)
Model Identifier: MacBookPro5,5
Items: MB991xx / A, MB990xx / A
Latest Compatible Operating System: OS X El Capitan 10.11.6

2008 year

MacBook Pro (15-inch Late 2008)
Model Identifier: MacBookPro5,1
Items: MB470xx / A, MB471xx / A
Latest Compatible Operating System: OS X El Capitan 10.11.6

MacBook Pro (17-inch, Early 2008)
Model Identifier: MacBookPro4,1
Code: MB166xx / A
Latest Compatible Operating System: OS X El Capitan 10.11.6

MacBook Pro (15-inch, Early 2008)
Model Identifier: MacBookPro4,1
Items: MB133xx / A, MB134xx / A
Latest Compatible Operating System: OS X El Capitan 10.11.6

♥ BY TOPIC: 10 useful multitouch gestures for your MacBook trackpad.

Identifying your MacBook Air model and part number

2020 year

MacBook Air (Retina, M1, 13-inch, 2020)
Colors: space gray, gold, silver
Model Identifier: MacBookAir10,1
Part Numbers: MGN63xx / A, MGN93xx / A, MGND3xx / A, MGN73xx / A, MGNA3xx / A, MGNE3xx / A

MacBook Air (Retina, 13-inch, 2020)
Colors: space gray, gold, silver
Model Identifier: MacBookAir9,1
Items: MVH22xx / A, MVH42xx / A, MVH52xx / A, MWTJ2xx / A, MWTK2xx / A, MWTL2xx / A

2019 year

2018 year

2017 year

MacBook Air (13-inch, 2017)
Model Identifier: MacBookAir7,2
Items: MQD32xx / A, MQD42xx / A, MQD52xx / A

2015 year

MacBook Air (13-inch, Early 2015)
Model Identifier: MacBookAir7,2
Items: MJVE2xx / A, MJVG2xx / A, MMGF2xx / A, MMGG2xx / A

MacBook Air (11-inch, Early 2015)
Model Identifier: MacBookAir7,1
Items: MJVM2xx / A, MJVP2xx / A

2014 year

MacBook Air (13-inch, Early 2014)
Model Identifier: MacBookAir6,2
Items: MD760xx / B, MD761xx / B

MacBook Air (11-inch, Early 2014)
Model Identifier: MacBookAir6,1
Items: MD711xx / B, MD712xx / B

2013 year

MacBook Air (13-inch Mid 2013)
Model Identifier: MacBookAir6,2
Items: MD760xx / A, MD761xx / A

MacBook Air (11-inch Mid 2013)
Model Identifier: MacBookAir6,1
Items: MD711xx / A, MD712xx / A

2012 year

MacBook Air (13-inch Mid 2012)
Model Identifier: MacBookAir5,2
Items: MD231xx / A, MD232xx / A

MacBook Air (11-inch Mid 2012)
Model Identifier: MacBookAir5,1
Items: MD223xx / A, MD224xx / A

2011 year

MacBook Air (13-inch Mid 2011)
Model Identifier: MacBookAir4,2
Items: MC965xx / A, MC966xx / A
Latest Compatible Operating System: macOS High Sierra 10.13.6

MacBook Air (11-inch Mid 2011)
Model Identifier: MacBookAir4,1
Items: MC968xx / A, MC969xx / A
Latest Compatible Operating System: macOS High Sierra 10.13.6

2010 year

MacBook Air (13-inch Late 2010)
Model Identifier: MacBookAir3,2
Items: MC503xx / A, MC504xx / A
Latest Compatible Operating System: macOS High Sierra 10.13.6

MacBook Air (11-inch Late 2010)
Model Identifier: MacBookAir3,1
Items: MC505xx / A, MC506xx / A
Latest Compatible Operating System: macOS High Sierra 10.13.6

2009 year

MacBook Air (Mid 2009)
Model Identifier: MacBookAir2,1
Items: MC505xx / A, MC233xx / A, MC234xx / A
Latest Compatible Operating System: OS X El Capitan 10.11.6

♥ BY TOPIC: How to remove a USB flash drive, removable disk (drive), etc. on macOS (7 ways).

Identifying your iMac model and part number

2020 year

iMac (Retina 5K, 27-inch, 2020)
Model Identifier: iMac20,1, iMac20,2
Items: MXWT2xx / A, MXWU2xx / A, MXWV2xx / A

2019 year

iMac (Retina 5K, 27-inch, 2019)
Model Identifier: iMac19,1
Items: MRQYxx / A, MRR0xx / A, MRR1xx / A

iMac (Retina 4K, 21.5-inch, 2019)
Model Identifier: iMac19,2
Items: MRT3xx / A, MRT4xx / A, MHK23xx / A

2017 year

iMac Pro
Model Identifier: iMacPro1,1
Items: MQ2Y2xx / A, MHLV3xx / A

iMac (Retina 5K, 27-inch, 2017)
Model Identifier: iMac18,3
Items: MNE92xx / A, MNEA2xx / A, MNED2xx / A

iMac (Retina 4K, 21.5-inch, 2017)
Model Identifier: iMac18,2
Items: MNDY2xx / A, MNE02xx / A

iMac (21.5-inch, 2017)
Model Identifier: iMac18,1
Article: MMQA2xx / A, MHK03xx / A

2015 year

iMac (Retina 5K, 27-inch, Late 2015)
Model Identifier: iMac17,1
Items: MK462xx / A, MK472xx / A, MK482xx / A

iMac (Retina 4K, 21.5-inch, Late 2015)
Model Identifier: iMac16,2
Article: MK452xx / A

iMac (21.5-inch Late 2015)
Model Identifier: iMac16,1
Items: MK142xx / A, MK442xx / A

iMac (Retina 5K, 27-inch, Mid 2015)
Model Identifier: iMac15,1
Code: MF885xx / A

2014 year

iMac (Retina 5K, 27-inch, Late 2014)
Model Identifier: iMac15,1
Code: MF886xx / A

iMac (21.5-inch, Mid 2014)
Model Identifier: iMac14,4
Items: MF883xx / A, MG022xx / A

2013 year

iMac (27-inch, Late 2013)
Model Identifier: iMac14,2
Items: ME086xx / A, ME088xx / A

iMac (21.5-inch Late 2013)
Model Identifier: iMac14,1
Items: ME086xx / A, ME087xx / A

2012 year

iMac (27-inch Late 2012)
Model Identifier: iMac13,2
Items: MD095xx / A, MD096xx / A

iMac (21.5-inch Late 2012)
Model Identifier: iMac13,1
Items: MD093xx / A, MD094xx / A

2011 year

iMac (27-inch, Mid 2011)
Model Identifier: iMac12,2
Items: MC813xx / A, MC814xx / A
Latest Compatible Operating System: macOS High Sierra 10.13.6

iMac (21.5-inch, Mid 2011)
Model Identifier: iMac12,1
Items: MC309xx / A, MC812xx / A
Latest Compatible Operating System: macOS High Sierra 10.13.6

2010 year

iMac (27-inch, Mid 2010)
Model Identifier: iMac11,3
Items: MC510xx / A, MC511xx / A
Latest Compatible Operating System: macOS High Sierra 10.13.6

iMac (21.5-inch Mid 2010)
Model Identifier: iMac11,2
Items: MC508xx / A, MC509xx / A
Latest Compatible Operating System: macOS High Sierra 10.13.6

2009 year

iMac (27-inch Late 2009)
Model Identifier: iMac10,1
Items: MB952xx / A, MB953xx / A
Latest Compatible Operating System: macOS High Sierra 10.13.6

iMac (21.5-inch Late 2009)
Model Identifier: iMac10,1
Items: MB950xx / A, MB413xx / A
Latest Compatible Operating System: macOS High Sierra 10.13.6

iMac (24-inch, Early 2009)
Model Identifier: iMac9,1
Items: MB418xx / A, MB419xx / A
Latest Compatible Operating System: OS X El Capitan 10.11.6

iMac (20-inch, Early 2009)
Model Identifier: iMac9,1
Items: MB417xx / A, MC019xx / A
Latest Compatible Operating System: OS X El Capitan 10.11.6

♥ BY TOPIC: Secrets of Spotlight Search on Mac.

Identify your Mac mini model and part number

2020 year

Mac mini (M1, 2020)
Model Identifier: Macmini9,1
Items: MGNR3xx / A, MGNT3xx / A

2018 year

Mac mini (2018)
Model Identifier: Macmini8,1
Items: MRTR2xx / A, MRTT2xx / A, MXNF2xx / A, MXNG2xx / A

2014 year

Mac mini (Late 2014)
Model Identifier: Macmini7,1
Items: MGEM2xx / A, MGEN2xx / A, MGEQ2xx / A

2012 year

Mac mini (Late 2012)
Model Identifier: Macmini6,1; Macmini6,2
Items: MD387xx / A; MD388xx / A, MD389xx / A

2011 year

Mac mini (Mid 2011)
Model ID: Macmini5,1; Macmini5,2
Items: MC815xx / A; MC816xx / A, MC936xx / A
Latest Compatible Operating System: macOS High Sierra 10.13.6

2010 year

Mac mini (Mid 2010)
Model Identifier: Macmini4,1
Items: MC438xx / A, MC270xx / A
Latest Compatible Operating System: macOS High Sierra 10.13.6

2009 year

Mac mini (Late 2009)
Model Identifier: Macmini3,1
Items: MC238xx / A, MC239xx / A, MC408xx / A
Latest Compatible Operating System: OS X El Capitan 10.11.6

Mac mini (Early 2009)
Model Identifier: Macmini3,1
Items: MB464xx / A, MB463xx / A
Latest Compatible Operating System: OS X El Capitan 10.11.6

♥ BY TOPIC: What is the battery life of a MacBook and how to find out the number of charge cycles

Identifying your MacBook model and part number

2017 year

MacBook (Retina, 12-inch, 2017)
Colors: Rose Gold, Space Gray, Gold, Silver
Model Identifier: MacBook10,1
Items: MNYF2XX / A, MNYG2XX / A, MNYH2XX / A, MNYJ2XX / A, MNYK2XX / A, MNYL2XX / A, MNYM2XX / A, MNYN2XX / A

2016 year

MacBook (Retina, 12-inch, Early 2016)
Colors: Rose Gold, Space Gray, Gold, Silver
Model Identifier: MacBook9,1
Items: MLH72xx / A, MLH82xx / A, MLHA2xx / A, MLHC2xx / A, MLHE2xx / A, MLHF2xx / A, MMGL2xx / A, MMGM2xx / A

2015 year

MacBook (Retina, 12-inch, Early 2015)
Colors: space gray, gold, silver
Model Identifier: MacBook8,1
Items: MF855xx / A, MF865xx / A, MJY32xx / A, MJY42xx / A, MK4M2xx / A, MK4N2xx / A

2010 year

MacBook (13-inch Mid 2010)
Model Identifier: MacBook7,1
Items: MB516xx / A
Latest Compatible Operating System: macOS High Sierra 10.13.6

2009 year

MacBook (13-inch Late 2009)
Model Identifier: MacBook6,1
Items: MC207xx / A
Latest Compatible Operating System: macOS High Sierra 10.13.6

MacBook (13-inch Mid 2009)
Model Identifier: MacBook5,2
Items: MC240xx / A
Latest Compatible Operating System: OS X El Capitan 10.11.6

MacBook (13-inch, Early 2009)
Model Identifier: MacBook5,2
Items: MB881xx / A
Latest Compatible Operating System: OS X El Capitan 10.11.6

See also:

iPhone new, demo or refurbished (ref, CPO, like new) – how to check by model number

23/11/2020 by ALOK DAS

But really – which iPhone was sold / presented to you? New from the factory or a broken and later rebuilt Apple? In order to find out the answer to this question, no specialized software or equipment is required.

♥ BY TOPIC: How to block a number on iPhone, how to view and remove numbers from the black list.

Video review

How to check by model number if iPhone is new or refurbished

All we need is the iPhone model number from the settings. How to find it:

1. Open Settings your smartphone.

2. Select a section The main → About this device…

3. Scroll down to the line Model number (in older versions of iOS – Model).

Note: The iPhone Model ID is also found on a label located on the back of the original box.

And now let’s look at the first letter of our number.

What characters can start the iPhone model number

It can start only with Latin letters M, F, N and P… Also, there is a variant that starts with a digit, for example – 3…

And here’s what each symbol means:

M – new device

F – refurbished at Apple factories (ref, CPO, like new)

Apple officially eliminates the cause of the breakdown, it is sure to change the case, glass on the display. The device comes in a special new white box along with new headphones and a charger (details).

The Russian consumer is familiar with such Apple smartphones under the name “Like New” or “Restored”, or “CPO”, their prices are usually 20-30% lower, and the quality does not suffer at all.

N – iPhone, issued under the Apple warranty to replace a broken gadget

3 (or another number) – Demo version (demo)

For instance, 3D035RU… A smartphone designed to be displayed on stands at Apple retail stores and authorized resellers. The main difference is a special version of iOS (regular user iOS can also be installed). In addition, there is a demo mark on the back of the box. Specifications (technical characteristics) of Demo devices are no different from ordinary ones (in detail).

P – personalized (engraved)

When buying an iPad and iPod Touch (less often iPhone) in the Apple online store, the buyer is invited to use a free service for engraving and packing in a gift box.

Now, if you are going to pick up a new iPhone or just want to know more about the origins of your existing smartphone, you know what to do.

Also, before buying an iPhone, be sure to check out our article on how to check if you are actually buying a new Apple smartphone.

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What is the battery life of a MacBook and how to find out the number of charge cycles

01/11/2020 by ALOK DAS

A computer Maximum number of recharge cycles MacBook MacBook (Retina, 12-inch, 2017)
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How to calculate interest: from the amount, number, on a loan, on a calculator, on an iPhone

15/10/2020 by ALOK DAS

Each of us got acquainted with the concept of percentage, as the relationship of any share to the whole, back in school, but in practice, even primitive mathematical operations with percentages can be performed only by those who are faced with similar tasks by occupation. And marketers are happy to use it.

We all know perfectly well how shop assistants can turn a real 25% discount into 50%, and bankers, on the contrary, sell loans at 30% with 15% specified in the terms of the agreement. At the same time, it is not so difficult to learn how to calculate real percentages, and below we give several basic calculation methods for frequently encountered situations.

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Video:

In the meantime, there is no need to know about it. ”

How to convert numbers to percentages and vice versa

These are fairly simple operations that in most cases do not require complex calculations. Most often, to convert a number to a percentage and vice versa, the numerical equivalent of 1% or 10% is determined by simply dividing the base amount (whole) by 100 or 10.

For example, having a 4% discount card in a store, you can quite easily estimate the final cost of the product.

A smartphone costs 25,000 rubles, 1% of this amount will be: 25,000 / 100 = 250, that is, 1% = 250 rubles, respectively, our 4% discount will save 250 × 4 = 1,000 rubles when purchasing this product.

Naturally, it will not be difficult to convert the numbers to percentages:

If your favorite chocolate cost 500 rubles, and now it costs 350 rubles, then to calculate the discount in percentage we perform the following actions: define 1% = 500/100 = 5 rubles, then calculate the percentage of the new price from the old one: 350 rubles / 5 rubles = 70%, and in a simple way we get the size of the discount: 100% – 70% = 30%.

Sometimes for working with large “round” numbers it is more convenient to use the calculation of 10% instead of 1%.

For example, you put 700 thousand rubles on a deposit at 20% per annum and want to calculate how much you will receive as a result. We calculate 10%: 700,000/10 = 70,000 rubles, respectively 20% per annum = 70,000 × 2 = 140 thousand rubles of your profit.

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How to calculate percentages in proportions

Another common life situation when we need to compare the percentages among ourselves. For this, an equation of the form is usually used X / Y = A / B, which can be read as: “the share of X refers to the whole Y as well as the share of A refers to the whole B”.

Let’s give an example:

You are going to paint the walls and you know that in order to obtain the desired shade, you need to dilute 400 grams of pigment in 5 liters of water, but during the last mixing you find that only 300 grams of the coloring matter remains, how much water should you add?

First, let’s calculate the percentage of pigment residue:

400 grams / 100% = 300 / P% (desired percentage)

400 grams is 100% the same as 300 grams is P%. That is, 400/100 = 300 / P%. To simplify the calculations in your head, remember that X / Y = A / B also means that X × B = Y × A, which means in our example 400 × P% = 100 × 300, P% = 30000/400 = 75 %.

Now we calculate the amount of water required for the last mixing and again use the proportion for clarity:

5 liters / 100% = X (required amount of water) / 75%

X × 100 = 5 × 75,

X = 375/100 = 3.75 liters.

We now know that 300 grams of pigment refers to 3.75 liters of water, just as 400 grams refers to 5 liters.

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How to calculate the interest rate on a loan (interest per annum)

Bankers are very fond of playing with numbers and it is almost impossible to calculate the loan rate in advance – even if, under the threat of torture, find out a specific value, then it will most likely be changed later through hidden payments or some special conditions prescribed in the agreement.

Imagine the following situation, you repaid a loan for 80 thousand rubles in a bank that you used for a year, eventually paying 115,500 rubles. Now you have a choice: to get a similar loan for a year and a half in the same bank to buy a new iPhone XS, or take a smartphone in installments at 4% per month. Naturally, in order to determine the best option, we need the value of the monthly interest rate on a bank loan in order to compare it with interest on installments. For this we use a universal formula:

R × 100 = I / S × Pwhere:

R = desired interest rate;
I = overpayment on the loan;
S = loan amount;
P = time period (year, month, week).

For our first loan we have:

I = 115,550 – 80,000 = 35,550 rubles overpayment. Accordingly, R × 100 = 35,550 rubles / 80,000 rubles × 12 months = 35,500 / 960,000 = 0.03703125. Multiply by 100 and we get a monthly rate of 3.7%, which is more profitable compared to a 4% installment plan in a store.

Now let’s calculate the amount of overpayment for a year and a half of using the loan:

I = R (0.037) × S (80,000 rubles) × 18 months = 53,280 rubles…

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How to calculate interest using a calculator (on iPhone, tablet, etc.)

Counting in your head is, of course, very useful, but sometimes it is much more convenient to get a smartphone and perform all the actions with a couple of movements in the calculator application. For instance:

We consider a 4% discount on the purchase of a smartphone worth 25,000 rubles (we find a percentage of the number) – enter 25,000 × 4, press the sign “%” and “=”, we get 1000 discount rubles;
In the example with a deposit of 700 thousand rubles at 20% per annum – we enter 700,000 × 20, press the sign “%” and “=”, we get 140,000 rubles of profit. Here it can be noted that if in the expression replace “×” on “+”, respectively, 700,000 + 20 and press “%” and “=”, then in the answer we get immediately the sum of the original number (i.e. 700,000) + 20% (i.e. 140,000), i.e 840,000 rubles.

Etc.

In the most difficult situations, special calculators with ready-made formulas that can be used online will come to the rescue. For example, on the sites planetcalc.ru and allcalc.ru you can find special programs for calculating loan and deposit rates, mortgages, subsidies, etc.

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How to track a parcel by track number in Russia: Posylka.net service

24/09/2020 by ALOK DAS

During the period of massive lockdown, postal, courier and transport services were the only connecting threads. They delivered food, medicine, clothes, books and much more, which is indispensable for a modern person.

To be sure that the parcel will arrive and know exactly when it will happen, you can use the free automatic tracking service Posylka.net.

All data from different postal and courier services are collected on one platform, which saves time – you do not need to enter passwords and parcel numbers separately on each site. Information about the parcel is available at any time, and notifications about changes in the status of parcels will be sent to the phone or e-mail.

Different ways to track a package: traditional and effective

If earlier, in order to find out where the parcel was, you had to call the local post office or call center, today all these issues can be resolved online on the official website of the postal or courier service. But for this you need to know, at least, the postal identifier (track number) of the parcel and what service it was sent by.

This information is usually provided by the seller. After the buyer pays for the goods, the seller or the sender registers the parcel and receives a unique track number. From that moment on, the package enters the database, but it is still impossible to track it – there is no information about it.

You can track the parcel only after sending it. To do this, you must enter its track number in the tracking field on the official website of the courier or postal service.

If this is a foreign service, you will have to spend time to understand the unfamiliar interface. It’s good if the site supports English. If the service works only in the language of the country, then you need to spend additional efforts to translate the status values.

Easier to track the package using the Posylka.net service. It is enough to enter the postal identifier once and the information about the parcel will be automatically pulled up to the site, including data from the sending and receiving countries.

It should also be noted that the service also has mobile applications for iOS and Android.

What to do if the package is sent but not tracked

There are situations when the parcel is not tracked by number. This could be due to various reasons:

you need to check the spelling of the tracking number again: a mistake may have been made;
the seller gave not a real, but a fictitious number – this does not mean that he is a fraud, just getting a track number is a paid option and for small orders it may be unprofitable;
the seller still turned out to be a fraud and did not send the goods;
the parcel is lost at customs or sorting point;
the parcel is registered, but has not yet been sent, but is at one of the preparatory stages;
if the track number consists only of numbers, then it is possible to track the parcel only in the country of the sender.

What to do in such cases:

wait for a paper notification of the arrival of the parcel at the post office;
apply for a search, if the parcel is still lost;
if the protection period has already expired, and the seller does not give any explanation, apply for a refund;
extend the protection period if the system shows that the package is already in the recipient’s country, but for some reason is delayed.

When can you start tracking your package?

Usually you can start tracking a parcel on the 2nd … 7th day. This is due to the fact that the cargo is first registered, packed and sent to the sorting point.

Large online stores send goods almost daily, so you can expect that the next day after paying for the order, information about the package will appear.

While small stores can wait several days until a certain number of orders are collected and only then send them all together. In this case, the first change in the status of the parcel may occur in 7-10 days.

How long to wait for the parcel

Delivery time itself also depends on many factors. For example, on the type of transport company, additional functions and the work of postal services of the sending and receiving countries.

The fastest methods are express services that deliver parcels in 3-7 days and EMS deliveries – parcels arrive in 1-2 weeks.

International postal services, on average, deliver in 2-4 weeks. But delays are also possible and then you have to wait for the parcel for 2-3 months. This could be caused by a postal employee error, customs issues, seasonality, mail congestion, or emergencies such as a pandemic. Tracking the parcel will help you understand at which stage the hitch occurred.

About company

Posylka.net is a universal parcel tracking service. The company started with a pilot project and the only opportunity was to track parcels from the AliExpress online store.

After a successful start, Posylka.net has gradually added more and more opportunities for unlimited search for packages around the world from any logistics company. Today the company’s database contains more than 750 transport, courier and postal companies.

The service has left its original simplicity, but added new functions that help save time and always know exactly where the package is. After connecting the service, all orders are automatically uploaded to Posylka.net and immediately begin to be tracked.

Why is there always +7 at the beginning of a Russian number and who invented it?

11/09/2020 by ALOK DAS

Every Russian telephone number starts with “+7”. There is undoubtedly some logic in this. But who and why decided that Russian numbers must necessarily have a seven at the beginning? But why do they sometimes write an eight at the beginning?

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What is a telephone numbering plan?

Under this not easy-to-understand phrase hides the system of assigning telephone numbers for their subsequent use. The dial plan allows the network to accurately identify the subscriber so as not to be confused with one another. There is also an International Numbering Plan, defined by a special international organization for telephony and telegraphy. According to the established norms, each country received its own code so that the phone numbers of people from different countries do not overlap and are unique.

The International Advisory Committee has divided the entire world into 9 large zones, assigning a number to each of them. If there were several countries within this area, then each of them had one or two digits added to the number. Since the division took place in the days of the Soviet Union, our country got almost the entire region at number 7. After the collapse of the Union, most countries, including Belarus and Ukraine, changed their regional code. But Kazakhstan kept +7. Ukraine moved to European zone 3, having received the prefix +380, Belarus has it +375.

Country phone codes (click to enlarge)

With the figure for the country, everything is clear, but where did this plus come from? In fact, the explanation is simple – the presence of the icon “+” indicates that the number can be used in international communication. This is also set by the numbering plan standards. But the presence of “+” at the beginning of the number does not mean that the calls will be international and you will have to pay more for them. If the call is made to a number with the same prefix, then the call is charged at local rates, no roaming is implied.

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Why then does the number sometimes start with 8?

Some people write their number starting with the number 8, and it is freely used when making calls, for example, in Russia and Belarus. It turns out that there is not only an international telephone plan, but also national ones. In Russia, the Ministry of Telecom and Mass Communications is engaged in its development. There is still an open telephone plan in the country – within your region you do not need to dial the local prefix and code, but use a short five-six-seven-digit number. But if you need to call another city, you will have to use the long-distance prefix, that is, this eight, and then enter the area code.

But no one bothers to use the international code to call your city. The call will not become more expensive, nothing bad will happen. But this approach to recruiting is not required. Usually, the eight is used for calls within the country, but even with the number 8, you can make an international call. To do this, dial: 8 – 10 – (country code) – (operator code) – (phone number). As you can see, this is not so convenient. That is why it is recommended to write down numbers in the phone book in the generally accepted standard, via +7.

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How to dial copied phone number on iPhone without creating a contact

10/09/2020 by ALOK DAS

When using an iPhone, you can see the phone number in the note or on the website. It is enough to touch it to immediately make a direct call. But if you don’t see the dedicated link, you can also copy the phone number and paste it directly into the Phone app. Here’s how to do it.

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How to call copied number on iPhone

Find the phone number that you want to insert into the dialer of the Phone app. The information you need can be in a note, on a web page, in a word processor, or any other application with text you can select. To select a number, double-tap it with your finger or tap next to the last digit of the number and in the context menu that appears, specify “Choose”…

When the iPhone clipboard menu appears, select “Copy”…

Then go to the iOS home screen and open the app “Telephone”touching the green phone icon.

In the application “Telephone” click tab “Keys”to open the dialer.

On the keyboard screen and tap the blank white area at the top of the screen, which usually displays a phone number as you dial it.

After you release your finger, a tiny button appears “Paste”… Touch it.

After clicking “Paste” the phone number you copied earlier will appear. To make a call, all that remains is to touch the green call button at the bottom of the screen.

If necessary, correct the inserted number in the same way as you edit text on iOS. In order for the cursor to appear, press and hold your finger for a moment in the place where you want to place it. Also use your finger to move the cursor.

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How to find your Apple Watch model by appearance or serial number

11/08/2020 by ALOK DAS

Since 2015, the apple corporation has introduced four full-fledged generations of Apple Watch smartwatches, which are quite difficult to distinguish visually. In this article, we will talk about how to determine the version of Apple Watch in appearance, serial number, and model identifier devices.

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How to find your Apple Watch model by serial number

How to find Apple Watch serial number on iPhone

1. On the iPhone, to which the watch is linked, go to the application Watch;

2. On the tab “My watch” open the menu The main → About device;

3. In the section “Serial number” you will find the data you are looking for.

How to find the serial number in Apple Watch settings

1. Open the app Settings on your Apple Watch.

2. Follow the path The main → About device…

3. Scroll down. In field “Serial number” and the serial number of the device will be indicated.

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Where is the serial number on the Apple Watch

Apple Watch Series 1 or later, including Apple Watch Hermès and Apple Watch Nike +, have a serial number engraved in upper groove (connector) for attaching the strap. Remove the upper watch strap and carefully inspect the connector.

The serial number of the very first generation Apple Watch (series 0) is engraved on the back of the device.

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Identifying the model (version) of Apple Watch by serial number

1. Go to the page Service and Support Eligibility Checksposted on the Apple website.

2. Enter the serial number obtained according to the instructions above in the corresponding field.

3. Enter the code shown in the picture and click Proceed…

4. As a result of the check, data on the generation of the watch, its model and case size will appear. The color of the watch shown in the picture may not match.

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How to identify your Apple Watch model by serial model number

In fact, it is impossible to accurately identify an Apple smart watch “by eye”, just as it is impossible to consider it guaranteed in the correct way and identification by model number (they are the same for some models). Therefore, you will have to combine both methods.

How to find the serial number of Apple Watch on iPhone

1. Go to the application on the paired iPhone Watch;

2. On the tab “My watch” open the menu General → About device;

3. Click on the field “Model”so that an article starting with the letter “M” changed to a five-digit model number starting with a capital “AND”…

How to find the serial number of the Apple Watch model on the watch itself

1. Open the app Settings on your Apple Watch.

2. Follow the path The main → About device…

3. Scroll down. In field “Model” and there will be a device model identifier starting with the letter “AND”…

To find out which model number corresponds to, compare it with the model numbers and descriptions below.

Where is the factory model ID on the Apple Watch

The model number is engraved in lower groove (connector) for attaching the strap. Pull out the lower watch strap and carefully inspect the connector.

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How to identify your Apple Watch model by appearance and compare with the serial model number

Apple Watch 1st generation (Series 0)

Apple Watch

The model has a steel case, a ceramic back panel and comes in two colors – pure steel and “space black”. Model numbers A1553 and A1554 for case sizes 38 and 42 mm, respectively.

Apple Watch Sport

The Apple Watch Sport is crafted from aluminum with a composite back and sapphire crystal, Ion-X glass in space gray, gold, rose gold, and silver. Model numbers A1553 (38 mm) and A1554 (42 mm).

Apple Watch Edition

The first generation premium watches are available in 18K yellow or rose gold, and the Digital Crown is available in red, white, black or blue. The model numbers are the same – A1553 and A1554…

Apple Watch Hermes

The easiest way to determine whether a watch belongs to the Hermes series is by the branded dial and engraving on the ceramic back panel. Model numbers A1553 and A1554…

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Apple Watch Series 1

It is not possible to visually distinguish this watch from the Apple Watch Sport – the same colors, the same dimensions, the same body materials used. Only the model numbers differ, the Apple Watch Series 1 has this A1802 and A1803 for sizes 38 and 42 mm.

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Apple Watch Series 2

Apple Watch (aluminum)

Apple Watch (stainless steel)

The second generation steel and aluminum Apple Watch has the same look, color, and materials as the first generation Apple Watch and Apple Watch Sport. And again, the external difference lies only in the model numbers – the second generation has part numbers A1757 and A1758…

Apple Watch Edition

Premium watches of the second generation are easily distinguished from the first thanks to the white ceramic case, model numbers A1816 and A1817…

Apple Watch Hermes

They differ from the first generation only by the model number, which coincides with the aluminum / steel watches of the second generation – A1757 and A1758…

Apple Watch Nike +

The watch itself is absolutely identical aluminum Apple Watch Series 2, but there are only two colors – silver and space gray. However, they have the same model numbers. A1757 and A1758however, they can often be identified by the pre-installed Nike + software and branded strap with large holes.

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Apple Watch Series 3

Apple Watch Stainless Steel

The main difference between all third generation smartwatches with support for an embedded SIM-card (GPS + Cellular) is the red cover of the Digital Crown. Such watches are not sold in Russia.

Apple Watch Series 3 GPS + Cellular comes in stainless steel only.

The rest of the models are identical in terms of design, model numbers: A1860, A1889, A1890 (all 38 mm) and A1861, A1891, A1892 (all 42 mm).

Apple Watch, aluminum, GPS only

Besides, “rose gold” is disappearing from the list of available colors of aluminum watches.

Model numbers for “GPS only” watches A1858 and A1859…

Apple Watch Edition (GPS + Cellular)

Apple Watch Edition Series 3 inherits a ceramic case from its predecessor, which has received a new color – gray. Otherwise there are no differences, the model numbers are identical to the aluminum and steel watches with support (GPS + Cellular) – A1860, A1889, A1890 (all 38 mm) and A1861, A1891, A1892 (all 42 mm).

Apple Watch Hermes and Apple Watch Nike + (GPS + Cellular)

Apple Watch Hermes (GPS + Cellular)

Apple Watch Nike + (GPS + Cellular)

Hermes and Nike + brand watches of the third generation (GPS + Cellular) can also be identified in appearance only thanks to the red Digital Crown cover, otherwise the design has not changed, the model numbers are the same as in other cellular watches of the third generation – A1860, A1889, A1890 (all 38 mm) and A1861, A1891, A1892 (all 42 mm).

Apple Watch Nike + (GPS only)

Obviously, the only difference between the model is the lack of support for SIM cards and, accordingly, the red wheel cover. Model numbers for “GPS only” watches A1858 and A1859…

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Apple Watch Series 4 (review)

The fourth generation of apple smartwatches did not continue the line of premium Edition models, and the main difference in the design of the entire series was the increase in the size of the cases by 2 mm, in addition, the steel Apple Watch Series 4 (not sold in Russia) received a gold color. Otherwise, the design remains the same, and the Cellular models are still identified by the red Digital Crown.

Apple Watch Series 4 colors, stainless steel, GPS + Cellular (not available in Russia):

Apple Watch Series 4 colors, aluminum, GPS + Cellular (not available in Russia):

Apple Watch Series 4 Hermes, GPS + Cellular, stainless steel (not sold in Russia):

Apple Watch Nike + (GPS + Cellular) colors, aluminum (not sold in Russia):

Part numbers for all Apple Watch Series 4 with a cellular (GPS + Cellular) – A1975, A2007 (all 40 mm) and A1976, A2008 (all 44 mm).

Apple Watch and Apple Watch Nike +, GPS only (sold in Russia)

GPS models differ from their predecessors only in number – A1977 (40 mm) and A1978 (44 mm). Colors are identical to GPS + Cellular models.

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The main distinguishing feature of the Apple Watch Series 5 over its predecessor is the “always-on Retina display” and the default 32GB storage (detailed comparison). Apple smartwatches have again received a continuation of the line of premium Edition models (not available in Russia). The watch design remains the same as the Apple Watch Series 4.

Apple Watch Series 5 (GPS), case material – aluminum

Colors: space gray, gold and silver:

Model numbers: A2092 (40mm), A2093 (44mm)

Apple Watch Series 5 Nike (GPS), case material – aluminum

Colors: space gray, gold and silver. Visually, Apple Watch Nike 5 can be identified by the pre-installed Nike + software and a branded strap with large holes.

Model numbers: A2092 (40mm), A2093 (44mm)

Apple Watch Series 5 (GPS + Cellular) Aluminum

Colors: space gray, gold and silver. A distinctive feature of the Apple Watch Series 5, equipped with a cellular module (Cellular), is the red cover on the Digital Crown.