Chosen Solution
I replaced a Iphone 6 display some days ago. The display was cracked, I ordered a new display on Ifixit.com. The replacement went perfectly. But the user calls yesterday, she tells that since I replaced the display, when she talk with her phone her cheek “activate” the display. While she is talking on her phone sometimes “FaceTime” start or some digit button are activate, so she hear the “touch tones” while she is talking… I made a restart of the Iphone (home button+power button) but it did not work. I made some research but can’t find anyting like that… Does somebody got this trouble or something similar? Thank you very much
Sounds to me like the proximity sensor is malfunctioning. That way the phone doesn’t know it’s pressed against the user’s head, and will continue to register touches made by the ear and cheek. On the iPhone 6 it’s located above the top speaker. If I remember correctly it’s connected to the front-face camera and sensor ribbon. Take a look at this guide on how to replace it.
