The android 6 GOOGLE has introduced restrictions of work with a fingerprint scanner: after switching on your device, you need to enter the PIN \ password once, and banned the use of the scanner when the device is locked by third-party applications.
This module eliminates these restrictions.
Confirmed Working Devices:
Lenovo Vibe P1
Moto G4 Plus
Redmi Note 3 Pro
Samsung Note 4
Sony Xperia Z5C
1.0.1 - First release (From my Lenovo)
184.108.40.206_d - test version with samsung fix (hope)
1.0.3 - release version with fixes
1.0.4 - fix for scanner works after unlock