When I go to: Menu, Settings, then Software Update and check for new softward, it checks for a really long time and then says "ERROR SERVICE UNAVAILABLE Check for Softwar Update under SEtting whjen service is available". Yet i do have service. My husband bought a Thunderbolt the same day I did and his is doing this too. This worked when we first got the phones, but its been doing this for about 3 days. We are in a 3G area which I know has issues, but it does the same thing when the phone is in a 4G area. I know that updates are sent via text, but this feature shoud still work like it did when we bought the phone. What going on???