Turn your device on and off, and unlock your device.
Press and hold the Sleep/Wake button until the Apple logo displays.
Simultaneously press and hold the Sleep/Wake button and the Volume up or down button until the slider appears then select and drag the Power icon to right.
Press the Sleep/Wake Button, then swipe up from the bottom of the screen.
Note: iPad locks automatically if your device is idle for 2 minutes. To adjust the screen lock time, select the Settings app > Display & Brightness > Auto-Lock > desired lock time.
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