My solution for slow / unsensitive fingerprint function
- Model Name: ZenFone 8
- Firmware Version: A12 (M18.104.22.168-Sake_0000110)
- Rooted or not: Not rooted
- Frequency of Occurrence: An instant
- APP Name & APP Version (If your issue relates to the app): -
The issue was discussed a lot of times by multiple customers. The standard solutions like Safe Mode and Factory Reset are generally not a Root Cause.
In my ZenFone 8 my thumb finger was pre-scanned 5 times but without any improvement in fingerprint sensor functionality.
My guess was that sensitivity and rapidness of fingerprint sensor depend also on local illumination of finger area prior to the fingerprint recognition.
Thus, making the color in "Indicator styles" BLUE instead of default white, you will decrease the multi-wave effects probably disturbing fingerprint sensor to work properly.
In my case the fingerprint sensor becomes accurate and fast like in my previous iPhone device. Good luck and write your own experience.