I was given an iphone 4 to fix. I've replaced screens before, but this guy tried to do it himself but he couldn't do it. When I got the phone, the flash lit up. It wasn't a full "flash" like you get from some flashlight applications, it was just dimmly lit.
I took apart the phone. Successfully put it back together, and the little light from the flash was still there. Even when the phone is powered off, it stays on. I can go into the camera app now, and if I take a picture, it FLASHES, but then it stays dimmly lit. Any ideas at all? Hardware problem? Is there anyway to reset this?