Do Cingular/At&t phones work with tmobile sim cards?

[floechloe]

i have a tmobile sim card and really want an at&t phone. Just wondering if that works without it being unlocked. Thanks again.

 

[tasteyy]

Sorry without Unlocking the Mobile Phone from network lock..You cannot use with other GSM Network Sim card...You need to Unlock it...You can get the Unlock code from the site Simpleunlocking.com
and get the Free Unlocking Instructions at Mobileunlockguide.com and Unlock it step by step.