Initially I had to plug in and unplug the AC cord 4 times to get it to power on.  Then it worked for around 10 minutes until Chrome said it had to restart for an update.  Instead of restarting, it just turned off and would not power back on.  I tried the suggestions I found on the web, such as holding down the refresh button and power button for 15 seconds--but nothing happened, the thing is now a brick.  I'm returning it.