Change The Volume - Nokia Lumia 820 User Manual

Unlock the keys and screen
Press the power key, and drag the lock screen up.
Set the keys and screen to lock automatically
On the start screen, swipe left, tap Settings > lock screen > Screen times out after, and select
the length of time after which the keys and screen are locked automatically.

Change the volume

Trouble hearing your phone ringing in noisy environments, or calls too loud? You can change the
volume to your liking.
Use the volume keys.
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