Google has rolled out the final version of Android 7.1.2 to Nexus and Pixel devices. There are several reports coming from different users and forums that at the moment the update had only rolled out to selected users since last week. But it seems that there is some issue regarding the update of Android 7.1.2 and Google may have missed a spanner in the works. This news was first reported by Android Police, according to them, users of Nexus and Pixels Devices has encountered this issue. When they updated their devices on Android 7.1.2 they are unable to use their fingerprint scanners. Look like something is broken after the update.
When users first faced this issue, some of them have deleted their saved fingerprints and then they re-register them, later on, they find out Nexus Imprint setting has vanished. Although the notifications shade swipe gesture still works, for bringing the device notification bar down and see your notification. This shows the hardware is perfectly fine and the problem is something related to the update that broken the fingerprint recognition phase.
The number of devices that has been affected by this issue came from that user who receives OTA update, who are associated with beta programmers and sideload update. That means this issue doesn’t come with a particular updating method and everyone is facing the problem. After facing this issue some of the users has factory reset their device after that now everything seems to be working fine. Well I have a Nexus 6P and I updated my device last week, but I didn’t experience any issue everything is working fine. I have received OTA update
If you are one of the users who are affected by this problem firstly make a complete backup of your device and then manually flashing the factory image. If you don’t want to perform this by yourself then hit the Google product forum and leave your details and explain your problem so that Google can issue this issue for you.
Via: Android Police