JVC J20 User Manual page 19

Fast Scrolling
It is similar to scrolling, but additionally you
shall scroll rapidly with forward and backward
movement by holding your finger pressed.
Resizing & Zoom In/Out with Finger
You may perform the zoom out operation by
bringing your two fingers (usually the index finger
and the thumb) close to each other and the zoom
in operation by bringing the fingers away from
each other.
NOTE: This is usually useful in maps, browsers and
pictures.
Screen Orientation
This feature allows that the screen detects when
you rotate the device to the right or left and takes
horizontal or vertical position as per this detection.
Settings => Display =>Advanced => Device Rotation.
Ambient Lighting Sensor
If adaptive brightness mode is activated in your
screen brightness settings, it shall adjust the screen
brightness according to the ambient light. Follow
Settings => Display => Adaptive brightness steps to
activate the adaptive brightness mode.
Finger Print Sensor
Your phone features a finger print sensor. Follow
Settings => Security&Location => Fingerprint steps
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