Unlock bell iphone 3GS with absinthe

here is what i did.

1) download 5.1.1 firmware
2) in redsn0w_win_0.9.11b4, modified the firmware preserved the based band
3) in DFU mode, in itune, shift+ restore the modified firmware
4) absinthe jailbreak
5) add UltrasnOw fixer with the repo in cydia
6) ultrasnOw
7) insert your sim, reboot

http://absinthejailbreak.com/unlock-iphone-4-3gs-ultrasn0w-fixer-5-1-1/

http://absinthejailbreak.com/update-to-ios-5-1-1-preserve-baseband-mac-win/

http://absinthejailbreak.com/untethered-jailbreak-5-1-1-ipod-touch-3g-4g-absinthe-2-0/