I am looking to unlock my 5s for international travel, it's on 2 year contract with At&t. I tried sending unlock request which did not work because of the contract. I read in one of the threads here that one can temporarily put friend's SIM card, restore the phone and then ask unlock from friend's account who is not in contract. Has anyone experience with this? and also my friend has iphone 4 which I think uses micro SIM. Is it possible to put her SIM card into my 5s and activate it on her account for requesting unlock? We already tried requesting unlock from her account with my IMIE, but it says the phone is active on another account.