Allow to unlock but still don't.
My iphone4 had been allowed to unlock by AT&T but I still can't unlock by chinese sim card.More than three AT&T staffs told me than my iphone4 had been allowed to unlock and sent me instruction on how to unlock my iphone4.First,I had tried to put the AT&T sim card in the iphone4 for active the iphone,then I change the chinese sim card in the iphone4.but still fail.My iphone baseband is 02.10.04.Is question from it? I had reseted the network settings and then try to insert yor sim card.but It's fail.still show that no serve
iPhone 4, iOS 5.0.1