S21 fingerprint sensor

[Bulb3]

Galaxy S21's fingerprint sensor doesn't work with tempered glasses. Although it'll work with few UV tempered glasses but not very smooth. The chances of getting it right falls down to 75%

[AlenSony소니알렌]

Still my old j5 have no hard scraches with no protectors

[Ravik6]

Use spigen tempered glass it works flawlessly

[Bulb3]

I'm using one minute uv glass. Not great but works fine

[AlenSony소니알렌]

Using thick tempered glass make problems try not to use tampered glass only protect form getting scratch it have latest corning protection so don't get easily scratch i dont use an protectors on my a52 its sensor works fine

[Samsung_Support2]

Dear Samsung Member,  

Greetings from Samsung Customer Support!    

We apologize for your inconvenience. We would request you to register your concern in Samsung Members Application. So, that our concern team gets back to you as soon as possible.

Please follow this path to register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).

Note. please attach the error log file within 15 minutes of the error occurred.

Thank you for writing to Samsung.

Warm Regards,   
Samsung Customer Support