I need help on how to change the configuration on the T-Mobile BB 7105t for internet access and SMS on ATT/Cingular network. Please help. I need detail instructions. thanks in advance.
First, the device needs to be unlocked. Once the device is unlocked simply insert your AT&T sim card into the device and you should be good to go. You'll need a BB data plan on your account.
just because the phone gets unlocked by tmoible , the voice calls will work on another network but we see all the time data doesnt, so becareful, i work for att and see this all the time