Power On /Off /Standby Mode
ON: Press and hold the Power button for 3 seconds until the logo screen appears, then release.
OFF: Press and hold the Power button. When prompted, select Power off.
SLEEP MODE: While the Tablet is on, press the Power button quickly to turn off the display only. The Tablet will enter Sleep mode which minimizes some of the battery functions (to avoid unnecessary battery drainage, turn off the Tablet completely). Tap the Power button briefly to wake from Sleep mode.