how can u unlock at&t phones to work on tmobile sim cards?

[tinks2kewl]

i want a iphone, but i have tmobile. how can i unlock at&t phone so i could put my i tmobile sim card in?

 

[Unregistered]

HI you can easily unlock your iphone from AT&T network lock with the help of providers like Onlinegsmunlock.com here they will unlock your iphone using remote unlocking service for affordable cost ..After unlocking your iphone you can freely use it with t-mobile or any other GSM sim ...