Basically I have important pictures and files on my Samsung Galaxy S3 that I need to transfer or backup onto my computer or somewhere else. The problem is the screen has gone black and unresposive. I've tried everything and found no loose connections anywhere and there is no water inside or any other kind of damage. In order to backup my pictures Kies asks me to unlock my device first... obviously this is not possible because the touch screen doesn't work. Everything else about my phone works except the screen. Help.