I've had sprint for almost a year with excellent results. I always had full signal and my 3G and air card were fast and never had problems. On Monday this all changed. Now I have no bars and have missed 5 calls and dropped 2. My internet is slow if it works at all. I have no idea what happened. I have tried prl updates, shutting both devices off and restarting them, even taking the battery out of the phone for a couple hours hoping it would reset itself. No luck. Does anyone know what can be done to fix this problem? I'm very disappointed. I switched from US Cellular to Sprint to get away from these problems!!