I was texting.. then all of a sudden my iP4 just rebooted. When it loaded up - it is unresponsive to any touch commands and it stays on the " searching " in the signal area. Phone wont allow me to reboot, restore, dfu. Nothing. I raised the issue in developer forums. It seems to have already been raised by admins to critical. So i have no phone right now.. gonna try to see if i can get it replaced or by another phone.