Fingerprint data lost

[Can9n]

Yesterday evening my Z5 had 0-1% battery left and I connected the charger. At the same time with connecting the phone turned itself off, I thought that the battery died at the exactly same moment.

In the morning I turned on the phone and wondered why the fingerprint sensor is not responding. I opened phone with pin and checked the fingerprint settings. Fingerprint lock was turned off and when I turned it back on I had to teach my fingerprints again.

Has anyone else had this kind of problem? It is quite worrying that your biometric credentials can just get lost.

[Uliwooly]

@Can9n

That's rather odd, have you installed any antivirus, taskillers, clean master apps? have you reset the phone in any way?

[Can9n]

No, I have not installed that kind of apps. Only one is AVG Protection that came pre-installed in my phone.

I haven't reset the phone in any way either. The phone turned off same time as I plugged in the charger (the battery might have died at the same moment as it had already been at 1% for a long time) and next morning the fingerprints did not work anymore.

[Smarty1979]

Today had the same issue. Firmware 52. Battery was at 50% and device was connected to hands-free via BT. When I tried to unlock, it rebooted and fingerprint was disabled afterwards. All fingerprints were deleted.

[Donut68]

Just happened to mine. Battery at 94%, phone restarted, then scanner said "try again" without me touching it, then all settings for fingerprints disappeared. Sony??

[Sando]

Hello,
 I have the same problem on my z5 the digital fingerprint reader stopped working even after rebooting the z5.