Lock The Keys And Screen - Nokia lumia 830 User Manual

Turn the phone off
Press and hold the power key, and drag the lock screen down.

Lock the keys and screen

If you want to avoid accidentally making a call when your phone is in your pocket or bag, you can lock
your keys and screen. You can also set the keys and screen to lock automatically.
To lock your keys and screen, press the power key.
Unlock the keys and screen
Press the power key, and drag the lock screen up.
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