Update Android 7.1.2 disable the fingerprint sensor on some devices Pixel Nexus
After the Android update 7.1.2 and some users of devices Pixel Nexus and got a nasty surprise. The update has broken the performance of fingerprint sensors for these devices.
According to reports on the forums of technical support, the error manifests itself on some instances of the models 5X Nexus, Nexus 6P, Pixel and Pixel XL.
We will remind, some time ago, Google Pixel and Pixel XL the defect is associated with the microphones
Source: GSM Arena