sudomod

I bought one of Helders prebuilt mintypi lites and after I assembled it, it worked perfectly fine for about a week before the menus starting glitching. When the glitching starts I can’t use any buttons except the combination for the safe shutdown. The glitching also happens in a game as well.

My guess is that you probably have a bad flash or a low end SD card. I would first try a reflash and if that doesn't work, get a new SD card from a reputable brand (ex: SanDisk or Samsung).