JVC J20 User Manual page 14

Name of the Button
Power Button
Volume Buttons
Single Tap
This action turns off (dims) the
screen or turns on the screen.
When it is set from the Set-
tings>Accessibility menu, it may
perform the turning off function
while making a call, too.
Allows increasing or decreasing of
volume level.
Allows taking a picture in camera
application.
English - 13
Tapping and Holding
Opens a menu that you can change
your phone's profile (mute on,
mute off, vibration), turn off the
phone, restart the phone or acti-
vate the flight mode or deactivate
the flight mode if it is on.
You may turn on the Camera when
you press the Power Button 2 times
while the device is in Standby
Mode.
Sets the volume to highest or
lowest level quickly.