what mod will work 4 live and back up games

No mod is gauranteed for live and you can't use backup games on live without getting eventually caught. But the one that most people try to use is SID (softmod installer deluxe) 4.5 using the dual boot option to where when you boot the xbox with the power button, you get modded xbox. Boot it with the eject button, and you get the Live dash to where you can log into live and play your originals.

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