This is a first for me ... the iOS update just bricked my iPad. I tried to install the 8.1.3 update from my iPad (was running 8.1.2). It downloaded the release, and then tried to verify it. After a while, it came back with "Verification failed" and asked if I wanted to try again. I tried again, and again it tried to verify, and while trying to verify, the machine spontaneously rebooted. I logged in, tried one more time, and this time it spontaneously rebooted and now will no longer boot up. I just see the white apple logo on a black background forever. I did a hard reset and still nothing. Sigh!!!