Hello all, sorry if i sound a bit noobish here but im am only used to the iphone 3g and not the 1g.
My freind brought her iphone on the day of relese in america and didnt get the at&t contract. she has since moved back to the uk and unlocked her iphone with the first software unlock and is still using firmware 1.0.5 or somthing rather low. she is using the o2 sim card out of her old

A 2 and wants to update to 2.2.1 but doesnt want to loose her unlock. am i correct in saying that all we have to do is update it in itunes, quickpwn and unlock? do we have to put the origanal at&t sim card in to update the iphone in itunes? i dont think shes ever synced it but i could be wrong. Please help and again sorry for my noobishness.
sorry that should have been iphone 2g.