Finger print sense not working

[chox22]

I'm using samsung s20 fe 5g and finger print just stopped working what could be the case 

[Tumelo159]

Did you try to remove your current fingerprint and added a new one?

[chox22]

Yes nothing is happening

[The-Kid-Deė]

Did you replace the screen??

[chox22]

No

[The-Kid-Deė]

It's time for change, I know you love that phone but it's time.

[SherlockHolmes222B]

Hi
chox22
Let’s troubleshoot this carefully. When a fingerprint sensor suddenly stops working on a Samsung S20 FE 5G, it could be due to a few possible reasons:


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1. Software Glitch

Sometimes a small software issue can disable the fingerprint sensor. This is common after updates or if the system cache gets corrupted.

Fix:

Restart your phone.

If that doesn’t help, clear the cache for the Biometrics/Face and Samsung Pass apps:

1. Settings → Apps → Show system apps → Biometrics/Face → Storage → Clear cache.


2. Repeat for Samsung Pass.





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2. Screen Protector or Dirt

The S20 FE has an in-display fingerprint sensor, which is optical. Dirt, smudges, or certain screen protectors can block it.

Fix:

Clean the screen where the sensor is.

Remove screen protector temporarily and try again.



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3. Fingerprint Data Corruption

Sometimes the stored fingerprints get corrupted, and the sensor stops recognizing them.

Fix:

Delete all registered fingerprints and re-register them:
Settings → Biometrics and security → Fingerprints → Delete existing → Add new.



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4. Software Update Issue

Some updates can temporarily cause sensors to misbehave.

Fix:

Check for pending updates: Settings → Software update → Download and install.

If a recent update caused the problem, a restart or patch often fixes it.



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5. Hardware Issue

If the sensor itself is damaged (e.g., after a drop or water exposure), it may stop working.

Signs:

Sensor never responds, even in recovery mode.

Screen protector removed and cleaned doesn’t help.


Fix:

If hardware is the problem, it will need repair at an authorized Samsung service center.



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💡 Quick test you can try:

Boot into Safe Mode (press and hold the power button → tap and hold “Power off” → Safe mode).

If the fingerprint works in Safe Mode, it’s a third-party app conflict causing the issue.

[chox22]

Thanks for your advices

[SherlockHolmes222B]

You welcome