My phone is not receiving MMS messages. I have reached out to ATT twice regarding this matter and the problem is fixed for a little while then the MMS messages stop coming through and I get a No Network Connection error once again. I have tried clearing the cache, resetting the network connections, completed a factory reset, using a different messaging app, and had the service provider re-establish the connection on their end. Nothing has worked to fix the problem beyond a few hours. There is no damage to the phone. I see many people people with other carriers having the same issue. It does not appear to be an ATT issue.