I just recently bought an unlocked LG DoublePlay because I had heard that it would work with AT&T's network. I have been able to text and call/receive calls, but I haven't been able use data. I currently use AT&T GoPhone service and have the $50 unlimited plan. I had even tried to buy a separate data package, but there's no data connection appearing on the notification bar.

I've tried setting it to "2G networks only", but still nothing. I've also tried searching networks... it comes up with Maritime (GSM), AT&T (GSM) and AT&T (WCDMA). Maritime works, but it is unable to register on either AT&T network. And I've also configured AT&T APN settings.

Any help would be appreciated!