A50

[drnb]

My fingerprint sensor it's not open by my fingerprint after few days. and when I delete my fingerprint I signed a new fingerprint it's working all the day without any problems in next day it's working but slow or not match it's not remember my fingerprint

Did any one know how to fix it? 

[MohammedSijah]

I am also having troubles with fingerprint(A50). Anyway I am satisfied with the face unlock. I never use fingerprints.

[drnb]

face unlock is better for day light but in night it's need light to work

[Subinktl]

Fingerprint scanning is not perfect on A50 and A70 with Android 9. Upgrade to Android 10 for a boost.

[cskdxb]

android 10 has other big issues...so better we stay with 9.

[drnb]

A50 it's too bad

[MohammedSijah]

Face lock works in night also, but it requires a bright lockscreen wallpaper(something near to white).
Goto Settings >Biometrics and security >Face recognition >Brighten screen >ON. Thank you.