Hi, I have this problem on my iPhone. When a call is done instead of the display go blank my display glows in a dim mode. Like it just shows the dim wallpaper with no signal and battery indication. This occurs often, even when no call is done. The dim lite appears as if some text message or email is received and nothing of such sort is occurs. I restored my iphone and installed a fresh batch of iTunes but no help. Can anyone suggest me a solution for this problem?