Originally Posted by Rafael
From power off state, hold volume down key and press power key to boot......continue holding both until small text appears in upper left of screen. Do nothing else......just let it boot. This is a cold boot.
It takes a bit of time....you can watch the time count down in the text.
Make sure you use the volume DOWN
key - I misread the above and used the volume UP key, which caused the tablet to lock up. I had to use the reset hole to fix it.