REPRODUCIBILITY: 100% (experienced three times)
OS VERSION: 22.214.171.124 onward
HARDWARE: Sony Xperia X f5121
UI LANGUAGE: French or English
After flashing/reflashing a “virgin” device, on reboot user is asked to scan fingers to save at least one fingerprint. Doing so produces no effect. No fingerprint saved.
- Factory reset
- Flash the device (SFOS >= 126.96.36.199) with device encryption
During first reboot, user scans a finger and saves her/his fingerprint.
During first reboot, user scans a finger but no fingerprint is read.
“Virgin” device (zero setting, zero app, zero patch)
This problem can be avoided if the device is NOT encrypted (SFOS3.2 Nuuksio or earlier), then upgraded to newer stop releases without activation of device encryption.