[los1223]

This happened to me a couple of days ago. I put it in airplane mode and did a soft reset, and then I couldn't get it back out. The option to turn it on and off when you hold the power button was greyed out, everytime I tried to access wireless controls to turn network connection back on the settings app would crash. Tried a few resets with no dice. I had to hard reset. I would call Sprint and try to get some tech support so if you have to hard reset like I did, you can atleast ask for a service credit for the inconvenience.