Contrast
Press 
to adjust the contrast of the screen's
display. Press 
to confirm the setting.
Brightness
Press 
to adjust the brightness of the phone's display backlighting. Press 
to confirm the setting.
Backlight Setting
You can turn the phone's keypad backlighting and display backlighting on or off, as well as set the length of time that backlighting will remain activated after the flip is opened or a key is pressed. After turning backlighting on, you can scroll to
the Time Duration option and then press 
(Edit) to set this length of time. When done, press 
.
OLED Duration
•Default: After the external display cycles through displays of the time and animations, it will power off, and will only power on again when you press the upper or lower part of
the volume key 
on the left side of the phone, or open and then close the flip (if a new message is received or there is an incoming call, the external display will also power on and then, after cycling through the programmed items, power off once more).
