Fingerprint sensor not working.

[L00nA]

I just purchased S21 ultra. (Ive been a blackberry user but cannot get them anymore). Decided to stick with android since my Key2 bb was android. I was loving this phone. But then The fingerprint sensor stopped working after just 2 days. Tried all the suggested fixes and even did a factory reset. My carrier offers a full refund if I return the S21 within 15 days. If it comes to that I will be going to iphone. Really frustrating.

[RedDogRabbit]

Open the Samsung Members app Click on "Get Help" run the Diagnostics for the Finger Print Scanner & see if you get any error messages?

Are you using a 3rd party screen protector?

If it's something other than Whitestone Dome tempered glass, then that could be the issue. 

[L00nA]

No screen protector is being used. Diagnostic instructs to open fingerprint. But it won't open. An error message saying 'Fingerprint sensor not working, if this continues to happen restart your phone. '

[RedDogRabbit]

In that case, try going to Settings > Apps > Biometrics & Security > Storage & Clear BOTH Cache & Data for Biometrics & Security > Reboot.

See if you can access Finger Prints then to test with Diagnostics.

If you still can't access the Finger Print unlock, then I'd suggest that you visit a Samsung Service center to get the device checked out by a tech, it could be a hardware issue. 

[Brantley]

Hi, We suggest you to try steps given by RedDogRabbit. Thank you RedDogRabbit.

[L00nA]

Thanks for the reply. I did all those steps suggested as I found them when searching for a solution. My provider offers a 15 day return policy. Looks like I'm making the move to iPhone.