and i borrowed a core from my friend. with his 20gb. when i put my 120gb in his system and turn it on, it ignores my hhd data. my friends do this all the time, they bring their hdd somewhere and use it on another 360 and its like it theirs. why dosent this work in my case? is it because they are 2 different versions? or is it because i got banned? is there a way to unban my system or at least my HDD to be read on other 360s?