How long ago did your port go through? Sometimes if takes a few hours before the data begins to work. But likely it is the APN settings. I have iPhone 4S, so am not familiar with the process on android. Try the sticky thread on setting up St android at the top of the forum, or if you can give more info, I am sure that someone will help soon. I do know that many have said they have to use the APN backup and restore (I think that's the name of the app) to backup their APN, create a new one, then delete the original. Otherwise some phones will default back to the original APN. Sorry I can't be more help, but be patient, and I'm sure someone more familiar will be by to help soon.