TL;DR
- Strings in the latest Android 15 beta suggest the OS can automatically delete biometrics that aren’t working well.
- Android will delete your face or fingerprint unlock when they aren’t working well and then prompt you to set them up again.
- We don’t know how the OS determines when a biometric isn’t working well or if this feature is even live yet in the latest Android 15 beta, though.
I never had an issue with it. The sensor unlocked the phone every single time without exception.
Every in screen sensor I’ve used has had issues at one point or another. Power button sensors are theoretically good, but I rarely use the power button to turn on my screen. With all the alternative ways to wake up the phone, I rarely wake it using the power button.