Pink and Green Hue in LCD with artifacts

Have a customer with an A1395. He tried a digitizer replacement himself and managed to bugger everything on it. Not only did he slash his WiFi antenna and Power/Vol Ribbon cables, but he managed to do something to the board itself. When powered on, black is replaced with green, and gradients are PINK. I checked all the connections, and even went as far as swapping the board into a known working unit, getting the same display results. Anyone have any thoughts?