사용자에게 답변하기: Touch ID not activated after screen replacementIf you have another screen, test it and see if touch ID would work. There are two reasons that I think that causes touch ID stopped working. 1. The connector cable on replacement is no good that is why is not detecting it. 2. When removing the home button from old screen, the cable is ripped, even a tiny nib it would cause the home button to stopped working.