Mine was doing this as well, Had to grab the stock recovery.img and flash the recovery (killing root) but at least allowed it to boot into recovery mode finish the update and boot up normal.
It gave me a message saying the update failed but it is on the correct version 139.14.1 so it seemed to have worked regardless.
You will lose root though. I haven't bothered trying to re-root it yet. I just had to get my phone back as i rely on it to much.
Originally Posted by magui43212
Happened to me to. If you have Titanium backup, try getting in to it before your phone shuts down and freezing MotorolaOTA
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