Some devices, such as those with a tablet mode, may have the key in a different location.
Press and hold thePowerkey for about two seconds until the screen goes dark.
If aPower Offoption appears, select that instead.
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Press thePowerkey again to boot up the Chromebook.
choose the notification panel to display the Quick parameters menu in the lower-right corner of the screen.
A blue notification means the update is recommended, while an orange notification indicates a required update.
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Wait for the Chromebook to shut down and power back up.
Press and hold thePowerkey until the Chromebook shuts down.
Simultaneously press and hold theRefreshkey andPowerbutton until the Chromebook starts up, and then let go of the keys.
Another way is to press and holdBack,Refresh, andPowerfor at least 10 seconds.
For Chromebook tablets, press and hold theVolume UpandPowerbuttons simultaneously for 10 seconds, and then release both buttons.
