I Bought a modded GBA, and it was working fine, but the screen was miss placed, so I opened it and put the screen on the right position. When I tested with the gba still open it was working fine, but after closing it, the screen now has no colors, everything else works just fine, it's only the screen that is now on black and white. I believe it's a IPS V3 screen. I tried re-opening, and checking for burned components, broken cables, but nothing.