Huawei Y635 Guide De Démarrage Rapide page 6

Locking and unlocking the screen
Press the power button to
lock the screen. After your
phone is idle for a specified
period of time, its screen
automatically locks.
If the screen is off, press the
power button to turn it on.
Slide your finger in any
direction to unlock the
screen.
Flick up from the bottom of
the screen to quickly launch
commonly used applications
without unlocking the screen.
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