[shailigum]

This is probably the most annoying problem ive ever had to deal with. It only happened to me after flashes. It's not a problem with the phone, it's an issue with Sprint/Account Services. The same thing would always happen to me on my pre whenever i'd do a hard reset (same with any other phone I had activated on my account)

If you are able to get your MSL you can go into EPST on your phone and reset data services, that was the only was I was able to get data working again. If you can't do this on your own then just go into a sprint store and specifically tell an employee that you want your data profile refreshed/data services reset on your device. Or tell them to re-provision your device. If you don't tell them this then theyre going to go through millions of useless solutions..also don't call Sprint for help about this problem, every time I called them they were not able to get me a solution.

I would suggest learning how to do this on your own as well because if you are going to be flashing lots of roms this is going to happen every time.