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Backlight
Set the power management timers for the display and keypad backlights. Set the display brightness for battery and external
power.
Brightness
Slide the marker left and right to select the desired keypad and display brightness level. Adjust the settings and tap OK
to save the changes. The changes take effect immediately
When the backlight timer expires, the display backlight and the display are Off, as is the keypad backlight. This is the
System Idle state, there is no separate User Idle state.
Setting Default
Brightness 60%
Battery Power
Turn off backlight if device not used for 30 seconds
Turn on backlight when a button is pressed or the screen is tapped Enabled
External Power
Turn off backlight if device not used for 1 minute
Turn on backlight when a button is pressed or the screen is tapped Enabled