Hi.
My phone is iphone 6 ios 11.3.1.
Last night , i use my fingerprint sensor good.
As morning, when power on my iphone, see "unable to activate touch id" and "add finger print" is GRAY color.
I try to restore my phone, but it'snot work.
I change my lcd last 2 week and finger print work exactly.
What is solution for thisproblem?
Try restarting the phone: Restart your iPhone, iPad, or iPod touch - Apple Support
If that does not fix it your phone has suffered a hardware failure. Make a genius bar appointment to have the phone evaluated: Genius Bar Reservation and Apple Support Options - Apple
Try restarting the phone: Restart your iPhone, iPad, or iPod touch - Apple Support
If that does not fix it your phone has suffered a hardware failure. Make a genius bar appointment to have the phone evaluated: Genius Bar Reservation and Apple Support Options - Apple
Problem using finger print
