I gave an iPhone 3G to a friend who lives in Dubai. At the time, it was carrier locked to at&t. I have since submitted a request here in the U.S. to unlock it, and the request was approved by at&t. For some reason, he's having trouble getting it to unlock, and I think I know why.
Am I correct in assuming that he needs to have access to an at&t tower in order for the phone to talk to it and grab the updated carrier settings, which would then unlock the device?
If so, this is obviously an impossibility in Dubai. My workaround solution to get him an unlocked iPhone is to send him the one I just unlocked here in the States.
Would love to know if there's a way he can unlock remotely (perhaps drive near a partner/roaming tower?) if at all possible.
Meantime, I also performed the same procedure on an iPhone 3GS I had sitting around and found that the unlock occurred after it talked to the at&t tower. "Carrier settings updated" was the title of the message. Phone says "No Service" but I have to presume it's now unlocked since the carrier settings have been updated.
Any cell network pros out there know how this works?