Activate your data plan from tmobile
Did a jailbreak for my iphone and got the data plan switched from my blackberry plan to a smart phone plan and the data plan didnt work. All you have to do is call Tmobile and theyll hook you up with an email that shows you how to get it working. But hey, Im a nice guy so heres the email they sent:
To configure internet access for the Apple iPhone, follow these steps: NOTE: Please read the disclaimer and notes on unsupported handsets, devices, and software. To set up internet connectivity From the Main Menu, scroll to and select Settings. Select General. Select Network. Verify the following settings: Data Roaming is set to On. 3G Enable is Off (3G iPhones only.) 1 NOTE: The Apple iPhone is missing the WCDMA 1700 band, and cannot function on the T-Mobile 3G network. NOTE: Changing the 3G Enable function while the device is on an active call may cause the call to disconnect. Select Cellular Data Network. NOTE: In software versions prior to 2.0, Cellular Data Network is called EDGE. In the APN field, enter epc.tmobile.com Leave the Username and Password fields blank. Press the Home button to save the APN and exit to the main screen. Select Settings. Select Wi-Fi. Select off. Test the connection by opening the Safari web browser.