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Backlighting
For better screen visibility in poor light, enable backlighting:
1
2
3
4
Key Guard Mode
You can effectively lock the controls by entering key guard mode. By default,
your device is set to go into key guard mode after one minute of idle time.
To enter key guard mode, do the following:
1
2
3
To prevent display damage, after your device has been in key guard mode for
two hours, a screen saver will appear. To dismiss the screen saver, press any
key or open the device.
22
Device Basics
Press
to open the Jump screen. Press
JUMP
then select Settings > Battery & Display.
Select the Automatically turn on when using device check box to
enable backlighting. Select the length of time you want backlighting to
stay on from the Turn off after pop-up menu.
To use the device's light meter to detect when the backlight is not needed,
scroll down and select the Use backlight only when needed check box.
Press
to save your settings.
DONE
Press
to open the Jump screen. Press
JUMP
scroll to highlight Key Guard, then press the wheel. You can also quickly
enter key guard mode by pressing and holding
Your device control buttons lock and the key guard screen appears.
To unlock and wake the device, press
privacy code (see next section), type it at the prompt. You can also wake
the device by opening the screen.
to open the menu,
MENU
to open the menu,
MENU
for two seconds.
DONE
+
. If you have set a
MENU
DONE
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