I used this phone for a while and just found out that when I am using camera there is a white line cross the screen, shown below by screen shoot. However, other are working pretty well, only except the camera function. I already updated the iphone to the latest version and this is a non-jailbreak iphone, but the white line still there. Do you guys think this is the hardware or software problem? and tell me how to solve this issue please. Thank you all! 
