As you know, after an unsuccessful identification attempt using the Face ID face recognition function, the system will forcibly ask you to confirm your identity by entering a passcode. However, it is possible to continue to try using the Face ID scanner to unlock the iPhone or iPad screen.
♥ ON TOPIC: How to automatically change wallpaper on iPhone or iPad based on time, place, etc.
How to retry unlocking with Face ID after a failed attempt
After a failed attempt, make sure your face is in front of an iPhone or iPad equipped with a Face ID scanner.
If you have enabled the function “Demand attention for Face ID”, make sure you are looking directly at your iPhone or iPad.
When you see the screen for entering your passcode, ignore it and swipe up from the bottom edge of the screen. Sometimes you don’t even need to swipe up. The function is triggered as soon as a face appears in the camera lens.
As before, a successful face scan on the lock screen will instantly unlock all of your secure notifications. Once the lock icon at the top indicates that the device is unlocked, you can read your notifications or swipe up to go to the home screen.