I'm on my 2 month old Nexus S 4G from Sprint. Everything has been working pretty well (NOT PERFECT. I HAVE BEEN HAVING SMALL ISSUES) until this evening. My phone was fine and I laid it down to charge. I came back about 10 minutes later and it had the triangle at the top meaning no data I think. This has happened before but usually I just toggle airplane mode on/off and it goes back to normal or I just reboot and everything's fine but this time it's not working. I even (Sadly) factory reset the phone through the settings menu and still nothing. I'm connected to my home wifi with 2/4 WHITE bars that I can stream the web with but none of the 4 "tower" bars are light up. About an hour ago, somehow three text messages came in from my wife freaking out because I wasn't answering the phone. I tried to text back but the message wouldn't send. I can't receive or make calls or texts now for about 4 hours now. Please help!