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Thread: iphone 4 4.1 firmwareis a discussion within the
Unlocking / Activationforums, a part of the
if i want to unlock 4.1 firmware version of the iphone 4 gsm, which firmware could i upgrade to? i have never saved my shsh.......
06-06-2011, 10:01 PM #1iphone 4 4.1 firmware
if i want to unlock 4.1 firmware version of the iphone 4 gsm, which firmware could i upgrade to? i have never saved my shsh....
06-06-2011, 10:57 PM #2
if it was originally 4.1 from apple, then its already baseband 2.10.04. which means there is no current software unlock. your best bet is to use a hardware unlock like the gevey sim tray to unlock. the only iphone4 software unlockable baseband is 1.59 which was only available with firmware 4.0.
but if it was originally a 4.0 ios with 1.59 then was upgraded to 4.1 with a preserved 1.59 baseband, then you can update it again to any higher level ios firmware and just preserve the bandband again at 1.59.