My cousin went to usa and i want to buy an iphone from usa because its much cheaper however he went to apple store or t-mobile and they said that if he want the iphone unlocked he have to turn it on for 40 days in the is and then it will be unlocked but I've seen on the Internet that people buy it and before turning it on they remove the t mobile sim and the put there sim and it works fine so who's right t mobile or people who tried that?
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