nope was it installing an update or something? Did you try unplugging it and restarting it completely?
Did you try the recovery menu? Clear cache, otherwise factory reset.
Also happens on my shield
I confirm the problem. Often goes into reboot when I rewind a YouTube video.
Happens to me often. Only when watching YouTube.
omg lots of times...
i have one that booted up a few times and never booted up again, even after factory reset in recovery. I think they have some bad storage issues.
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Yes it happens to me often when using the official YT app. Just power off it completely for a few seconds