Auction is for a black screen white back 32GB AT&T iPhone 3GS

The reason Ian selling it for parts is it will intermittently go all white on the screen I had the screen replaced and since then it started to do it. If push down on the corners it will start working again. When I took the pictures it was working fine but as soon I shut it down it went back to white as seen in the last picture. Was told the screen cable is lose causing the issue. Should be an easy fix.