I currently have an iPhone 5 with at&t on contract. My gf has my old iPhone 4 and uses it unlocked on air voice wireless (at&t mvno). Since T-Mobile requires you to trade in your old phone and purchase a new T-Mobile phone, can i just say that the iPhone 4 is my phone that is on "contract with at&t"? I can trade that in, purchase an iPhone 5s from T-Mobile and give my iPhone 5 to my gf. Is that possible and is there a way T-Mobile can actually check that the phone i trade in with them is the phone that is currently on contract? I mean I could literally give them an old nokia from 10 years ago and say I'm on contract with that right?
Thanks for all your help people of macrumors!
Thanks for all your help people of macrumors!