I'm selling my Xbox 360, and I did the hard drive format that required my serial number, but I'm trying to do a master reset. The one with the code in the System Info menu, what I'm trying to do is to make the Xbox run the initial setup on boot as if you plugged in for the first time. My friend I'm selling it to has never used an Xbox so I just want him to get a good start. EDIT: Forgot to mention, I've tried maybe 20 different master reset codes, none of them worked. It would just take me back to the console settings menu.