i have an at&t sim card and ive gotten the calling to work when i put it in my tmobile sidekick iD. i want texting to work too but i dont know how to do that. i have an imei number, can i use that?
You have to unlock your mobile ,if you need to change your network provider. This unlocking can be done through codes.
If you need an unlocking code, get it from Unlocking4u.com .This will help you to unlock your mobile easily.