Need help! My friend modded his 3DS today. It went fine and he was enjoying it. He took his ds card out and out it back in. When he booted his system, his screen had a massive black bar on it and it was flickering. We aren’t sure what to do and I don’t know if it’s the screen it self because it happened out of no where. I feel like the screen broke but it really did happen out of no where. It was fine when it was on earlier and he turned it off and back on and it was like that. There was a break in between time, like it was fine and when he restarted his system it just looked like that. I booted into multiple types of menus and it was still there. I know it is most likely the screen but how would this happen and if some way it is software how can I fix it? Editing so it repost for more attention