8
Power OFF HC-2021A/2021A-N
To initiate a system shutdown on Android operating system, you are expected
to follow the following procedures to turn off your system:
1.
Press down the power button for a few seconds until a pop-up window
appears.
2.
Tap
Power off
on the screen to shut down your system. If you need to
reboot your system right away, please be advised to wait at least three
seconds to do so.
However, it is likely that HC-2021A/2021A-N cannot restart or shut down
normally due to the unexpected reasons. In such a case, it is suggested to
initiate a shutdown by keeping holding down the power button more than 10
seconds.
Enabling/Disabling the Buttons
By enabling and/or disabling the buttons, you can use the functions of Auto
Backlight Adjustment, Control Button Locking, and Power Button Locking.
Auto Backlight Adjustment
In the default condition, the backlight of the HC-2021A/2021A-N must be
adjusted manually.
To use the function of automatic backlight adjustment, refer to the following
instruction.
After the Backlight Brightness Up and Backlight Brightness Down buttons are
pressed once at the same time,
the HC-2021A/2021A-N will adjust its
backlight automatically by detecting the ambient light.
To disable the function of automatic backlight adjustment, press once the
Backlight Brightness Up
or
Backlight Brightness Down buttons.
Press once
the Backlight Brightness
Up and Backlight Brightness Down
buttons
at the same time
.
+
Press once the Backlight Brightness
Up or Backlight Brightness Down
buttons to disable the automatic
backlight adjustment.
or
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