APN Setting won't save on 2G for MMS
I'm trying to enable MMS on a 2G running 3.1.2. I've installed the iFoneGuide repo thru Cydia and I now have the camera Icon in my messages. I can select a picture and it gets 90% done sending it and fails. In the MMS settings, I can't get the T Mobile APN setting to save, and I've tried the following ones that are suggested, but T-Mobile.
Any suggestions or help on how to solve this would be appreciated. Thanks