Answer to: Screen unresponsive after replacement and flickeringBut also it could be a defective screen and that it's not on property.
Answer to: Screen unresponsive after replacement and flickeringIt might not be the screen, it could be the battery. My old phone got hot and the display would sometimes short out but I got a new battery and it still works like a charm even though it's a iPhone 4
Answer to: Why is my screen black?The LCD's probably cracked if you dropped it witch means either trading in you phone or getting a new screen. But, it could also me that a wire shorted out in you phone so only the buttons light up and not your screen