回答“Touch ID not working after screen replacement”I have this problem and I have spent a good hour reading all of these posts. Seeing people's solutions. I have seen replace the backplate, did it, still broke. I checked the button under a literal microscope from my office. I brought it to my friend at Apple who replaced the button. Still broken and I can't figure it out. If anyone has had this problem and has fixed with the same work I've had or atleast close please respond.