How best to change the screen and still know where that screw get there, I recommend the iPhone 4 screw guide and the Youtube video switch to display. Anyone can switch on the computer such as hardware, and the display can exchange. When a cell phone shop here in Rosenheim repair costs 250. The display contrast with delivery only 30th
At the first attempt I have demolished impatience a cable from the display, so bring your patience. My second display is already on the way to me, maybe klappts time :).
I can not understand the negative reviews completely.