How to unlock iphone 5 from att?

I brought the iphone 5 without a contract and i heard that you can unlock the phone with just restoring it off itunes. I tried that and put my t mobile nano sim card in and it said it was not compitable. What do i do. Can i have a step by step process of how to do it, maybe i did something wrong. R u supposed to have the att nano sim in or the t mobile sim in while u r unlock it and etc.

Smdh.

You have to submit an online form to ATT, and wait at least a week for them to unlock it. Then restore with T-Mobile

You did it rigth you are supposed to have a tmobile sim card in it to unlock. It may take att a couple weeks after submitting it to them to unlock it. If you need it done fast try www.iunlockiphones.net its only $19.99 and they usually have it done in less than a day

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