How can i update a banned xbox 360 so i can play AVI?

Question

well i didnt know my uncle modded my xbox so after i got banned from live i found out now i had surgery and i want to watch sum movies i have that are AVI format i cant play them on my xbox cuz its not updated but i can on my bros cuz it is update. now is there anyway i can update my banned xbox without xbox live?

Answer 1

you can update your 360 manually by downloading the update from http://www.xbox.com/en-US/support/system... , and just make sure to decompress the file then burn it on a DVD, then just set your 360 to boot to a disc and put the DVD in the 360 then restart it and the update will be applied  

Answer 2

Can you revert to the original condition? Perhaps you can get your lovely uncle to return the old chip.