Samsung S21 Fingerprint sensor fails after software update
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OneUI version: 5.1
Security Patch level: 1 November 2023
Updated on: 18 November 2023
So basically the fingerprint sensor on my S21 was working fine after a fresh battery replacement until I decided to update the software. Once the update was completed the fingerprint sensor was not working at all, even after deleting the old fingerprints and attempting to add a new fingerprint, it ***sometimes*** works and gets to 10-19% then fails. I used *''#0''*# to troubleshoot, DBIAS_CAPSENSE_CHECK and DBIAS_TUNES_DBIAS_VOLTAGE both failed at 0.
Has anyone ever faced this issue with the software before? From a quick search online it seems to happen rarely with software updates introducing bugs.