54
2C. Settings
To hear sound when the screen is locked or unlocked:
1.
Press
>
>
Settings > Sound
.
2.
Tap
Screen lock sounds
. (A green checkmark will
appear.)
To set your device to vibrate when touching buttons and
keys:
1.
Press
>
>
Settings > Sound
.
2.
Tap
Haptic feedback
. (A green checkmark will
appear.)
To set how the phone reacts when you make an
emergency call:
1.
Press
>
>
Settings > Sound
.
2.
Tap
Emergency tone
.
3.
Tap
Off
,
Alert
, or
Vibrate
.
Display Settings
Changing the Backlight Time Length
Select how long the display screen remains backlit
after touch the screen or press a key before the screen
darkens.
1.
Press
>
>
Settings > Display > Screen
timeout
.
2.
Tap
15 seconds
,
30 seconds
,
1 minute
,
2 minutes
,
10
minutes
, or
30 minutes
.
Changing the Contrast
Adjust your screen’s contrast (brightness) to suit your
surroundings.
1.
Press
>
>
Settings > Display > Brightness
.
2.
Use the slider to set a brightness level.
Note:
Long backlight settings reduce the battery’s talk and
standby times. For the best battery performance, use
the shortest convenient timeout.
Summary of Contents for SPRINT OPTIMUS
Page 15: ...Section 1 Getting Started ...
Page 23: ...Section 2 Your Device ...
Page 129: ...Section 3 Sprint Service ...