How to Soft Reset Google Nexus 7 Tablet
If your Google Nexus 7 tablet by Asus is locked up and non-responsive, you can restart the device.
This won’t erase any data, it will simply “reboot” the device like you would a computer.
To perform a soft reset, you simply press and hold the power button for about 8 to 10 seconds. The screen will go black, and then you’ll see the Google logo again, and the tablet will boot back up like normal.