how do i unlock 3gs 5.1.1

strike007

hi everyone im a newbie so go easy on me lol,right i have iphone 3gs on 5.1.1 and its on orange but im on tmobile so need to unlock it,iv jb it with rocky racoon and works fine,any help plse and thanks in advance :-h

iPhoneHacks

If you preserved the baseband to 05:13:04 then you can unlock it using Ultrasn0w.