How do I "Unlock" a T-Mobile phone, for it to work with my At&t SIM card?

[Justin]

How do I "Unlock" a T-Mobile phone, for it to work with my At&t SIM card?

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[luxx]

find a mobile phone shop that can unlock it for you : )

 

[saravedi]

What is your current Model?you can unlock the T-mobile network lock using unlock code,buy the unlock code from the site Prounlocking.com and Unlock it...