Changing the backlight time length – Samsung A840 User Manual
Page 72
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Section 2B: Controlling Your Phone’s Settings
Changing the Backlight Time Length
The backlight setting lets you select how long the display 
screen and keypad are lit after any key press is made.
To change the backlight setting:
1.
Press Menu (
) to access the main menu.
2.
Select Settings (
).
3.
Select Display (
).
4.
Select Backlight (
).
5.
Select Main Display (
), Keypad (
), or
Pwr Save Mode (
).
6.
Select a time setting or on/off and press
.
Note:
Long backlight settings affect the battery’s talk and standby 
times.
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