First off, I am NOT ROOTED and I have not installed any new programs lately. Long story short, today my phone did what looked like a partial reboot or something while just laying on my desk. Afterwords, I was looking at it and noticed several problems: 1. I cannot receive calls. I can make calls, but when anyone calls me, it will ring twice on their end and then go to voice mail. My phone does not react at all. 2. My phone will not use the security grid. It will not enable either by widget or by going to the phones menu > security and enabling it. You can enable it, power phone off and back on and it goes right to the desktop. No lock screen period. 3. The home and search buttons on the bottom of the phone do not function. They vibrate like they are working but will they will not do anything. 4. And finally, when doing a long press on the power button, the airplane mode and other options do not appear. The only option available is the "Power Off" button. Please, if anyone has experienced this or has an idea on how to fix this issue or what caused it, please let me know.