Zte K87CC User Manual page 11

Waking Up Your Tablet
Your tablet automatically goes into sleep mode when it is
not in use for some time. The display is turned off to save
power and the keys are locked to prevent accidental
operations.
You can wake up your tablet by turning on the display and
unlocking the keys.
1. Press the Power key to turn the screen on.
2. Swipe up on the screen.
NOTE:
If you have set an unlock pattern, a PIN or a password for
your tablet, you'll need to draw the pattern, or enter the
PIN/password to unlock the screen.
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