I rebooted my iPhone recently to try and get an LTE connection (occasionally it won't register as connected in an area where I know I can get LTE, and a reboot gets it to come up), and when it booted up, the lock screen won't respond at ALL. Slide to unlock, notification center, control center, and the camera controls are all completely unresponsive. I've been running the iOS 7 beta since its release, and this is the first time this has happened. The only thing I can think of is that the battery is below 20%, and perhaps the on-screen warning popup is causing the issue? Oddly, the screen will respond to dismiss the warning, but not for anything else. Anyone else experience this particular bug? I'm hoping that a charge over 20% and another reboot will fix the issue when I get home. Not looking forward to a full restore.