fingerprint sensor stopped working

[shubham00007]

Suddenly  two days ago my Note9's fingerprint  stopped working  , I had not installed any new apps in two days so I tried resetting  the phones settings  but it didn't  work then I  performed  a reset and the fingerprint  sensor  starting working again but after restored backup  it stopped working again . I also check sensor by #*0*# and performing  normal scan then in the results everything  passed except for reset test .

Phone does not show any error it just stopped  working  .

Please advise  what I should do?

[Naveenpippal]

Boot in safe mode and check..

[shubham00007]

no it is not working in safe mode also

[guna50]

disable battery optimization for com.samsung.android.biometric.then restart ur mobile..

[shubham00007]

guna50 can you guide me steps for that ?

[guna50]

search for " optimise battery usage " in settings. then select all . disable biometric optimization as i attached picture

[shubham00007]

hi guna50 it worked ! thank you so much , even the customer care specialist were not able to solve the problem .

[guna50]

happy bro..

[shubham00007]

somehow problem came back again , I will have to visit service center some trick works then comes back.

[guna50]

then enable show icon to always in fingerprint settings..try if this works