Got mine, assembled it, prepared sd, it worked fine (yesterday). Today I've switched it on, it says "Cant find sd card" and then starts tiny tetris (last game played yesterday, even without sd card) - but the game hangs (doesn't respond to joystick, buttons). I've tried to reupload the arcade menu, but the arduino ide hangs while "uploading". How to completely reset that thing? TinyScreen mentions something about a button, but how to reach that? I don't want to unassemble the arcade (black acrylic) beacuse the sticker do for sure break and maybe some pins....