After the latest security update (. 400) the fingerprint sensor had gone from super quick to anything from 1-20 seconds or not at all to activate. Have reset the finger prints and entered new ones but there is still a clear delay from the sensor after the update.
Same issue here with my XA2. Before the 400 update, I am happy with how my fingerprint sensor works. After updating to 400 it took me a while to unlock my phone. Most of the time, the sensor don't work at all, I have to restart my phone just to make it work again. I dont restart my phone when I am on the old software, never encounter this problem before. It's very frustrating when I am on hurry.
So after update 400 the fingerprint sensor stayed broken which annoyed me too much to deal with so I have rolled back the OS to build 379 and everything is great again!
