Another iPhone 4 Hiccup
Given how rock-solid the hardware was for the previous iPhones, I’m quite surprised by this, but there are widespread reports that the newly-relocated proximity sensor on the iPhone 4 is not functioning properly.
The sensor was moved to the top of the phone due to the front-facing camera taking up residence in its previous space. It appears now that the move may be causing the screen to turn back on during calls, resulting in calls being ended, put on hold/speaker, or other wackiness. Yikes.
Some users on that massive Apple support thread are even reporting turning on FaceTime by accident…with their face. Seems oddly appropriate!