Hello,

So I am also experiencing the same problem. I recently changed screen on the iPhone 6 (gold). This is the third time I replaced an iPhone 6 screen but this is the first time I encountered problem with the Touch ID. After replacing the screen, I booted up the phone and checked Touch ID on the setting. It was on and still got the 5 registered fingers. I wanted to re-register the Touch ID for some crazy reason. So I deleted the 5 and turned off Touch ID. Then it stopped working upon re opening the Touch ID. But I noticed that the Add a Fingerprint button is still active. I have a spare iPhone 6 (space gray) with a faulty Touch ID. I compared it. I noticed differences on it like the the fingerprint button on the space gray is grayed out vs on the gold which is blue. On the space gray iphone, there’s an error message “Unable to activate Touch ID on this iphone” while the gold doesn’t have. So, I am wondering if I can still make the Touch ID on the gold iPhone work. By the way, the gold iPhone is on iOS 11.1 Beta. Anyone? Thanks!