Chosen Solution
Hello. I repaired an iPhone 6 plus screen for a friend. I removed the home button successfully with no damage, however when I removed the heat shield/backplate I damaged the flex that has the home button socket on it. Bloody thing had some really strong adhesive on it and I had no isopropyl to hand. I replaced the shield with a third party one I had lying around but no dice, TouchID just doesn’t work. No error, no notification, it just doesn’t read fingerprints. I’m certain the home button chip and cable is undamaged. My question is: could this be the third party shield that I installed? That’s the only thing I can think of besides going back and checking all the connections which I’ve done already. I’m gonna explain the situation to my friend and if he wants me to I’ll go ahead and order an OEM shield and see if that works, but I figured I’d double check here before I do that. Many thanks in advance for answers.
Most likely, you need to get a replacement display assembly. As long as the home button / flex itself was not damaged, Touch ID should work. It sounds like the problem is the socket connection in general. So get a replacement screen, and everything should work out fine for you. Another option would be to get a replacement shield that includes the home button link cable.
