I do not have the SIM card of the phone I am trying to unlock, does this mean I cannot unlock it? Can I do something else? (Btw my carrier is AT&T)
I have an iPhone4 which I am not using (I upgraded to the 5) from AT&T. However, I am international and want to use the 4 abroad. I am trying to unlock it, and I got the confirmation email from AT&T claiming that I could unlock it 24 hours. Problem is, I do not have my old SIM card. I threw it away thinking it was useless, since now I have another SIM card (same carrier—AT&T) but for the iphone5. Is there any way I can unlock my phone without that SIM card?
iPhone 4S, iOS 7.0.6