Xoom US Wifi: Appears dead

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http://forum.xda-developers.com – Hi, I'm having an issue with my Xoom Wifi (US, original). It's running Jelly Bean and is unrooted, locked, and stock everything. It won't turn on. Today, I was charging the Xoom, it was on and at 15% battery life. Later, when it around 45-50%, I unplugged it and let it be on standby. Later, I returned to it and it was unresponsive with a blank screen. I don't know if it was on at that point. However, at one point I noticed that the screen was backlit (but still showing black), and holding down the power and one or both of the volume keys for a few seconds turned the Xoom off. Sinc (HowTos)