Hello guys and girls. I changed my Iphone 5c screen, the screen was broken. After I finished I turned the phone on, and everything was working fine, except one thing. The top left part of the screen features a white light (Like a white fog). I opened the phone again to see if something was loose but everything looks fine. So what could it be? The light is not that huge, but when you're watching something dark it is noticeable.