E/MediaProfiles( 8248): The given camcorder profile camera 0 quality 2 is not found
in the full logcat, though. So probably the media_profiles.xml needs work. The click is the camera shutter being slammed closed or open. I've had that happen once or twice in the past, it's possibly related.
I used to have a problem that removing headphones while music was playing would cause reboot, but I can't reproduce that anymore with any of my headsets, so that seems fixed.