3387 Views 4 Replies Latest reply: Oct 9, 2010 2:51 AM by Malcolm Rayfield
Restoring any iphone through itunes will put the current firmware on the phone. Apple makes no provision to downgrade firmware.
Also as the phone is officially unlocked by the carrier 02 would a factory reset reverse the unlocking?
Updating firmware or restoring an officially unlocked iphone has no effect on the unlock. If officially unlocked, it will remain unlocked. Its only hacked phones that get re-locked to the carrier they were originally locked to.
He is aware of the problems a lot of people have experienced with this firmware on a 3GS
The iPhone 3G had problems with iOS 4 (fixed in 4.1), but the iPhone 3GS worked fine.
+'the phone can be restored to __factory settings__ prior to sale which will downgrade the firmware to 3.1.3 as some people prefer this version'+
Does a restore to factory settings also wind-back the firmware without jailbreaking?