Zte Blade A31 Plus Quick Start Manual page 10

You can wake up your phone 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 phone, you'll need to draw the pattern, or enter
the PIN/password to unlock your screen.
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