iphone after succsessful unlocking
I have iphone 5 at&t model A1428, IOS 8.2 clean without contract.
Yesterday I sent a request to unlock online AT&T. Request is successful. I talked to customer support, they confirmed that my phone is unlocked.
But I put my sim card GSM operator from a country outside the United States. I am now outside the United States. And my phone says that it can not work with this sim card.
I shall carry out any instructions. Restores phone. Restores in DFU mode. But I did not help. Customer Support AT&T advised to call Apple. They claim that they have everything in order.
Give me a phone number where I can help in my question?
iPhone 5, iOS 8.2, imei 013332003145010