As of recently, my modded xbox has rendered my gamertag "corrupted" when I go back to my regular xbox. I normally know the cause of this problem because I've had this problem in the past but something just doesnt add up this time. Ever since you needed to update to LT 3.0+, I've been playing a backlog of older games and the games you can play using the patch to play XGD3 on LT 2.0+ (LT 2.0+ being the current firmware I have). I havent chosen any sort of updates when playing games on my modded xbox and was working normally as far back as a few weeks ago. Does anyone know what could have caused this problem to happen? This modded xbox is not connected nor has it ever been connected to live in anyway Upon some more thorough research, I'm beginning to think i might have failed an AP2.5 check when seeing if the LT 2.0 patch worked with a newer game. Good this be what caused the problem?