78 - Settings 
 Screen lock sounds: Play sound 
when locking or unlocking the screen.
 Vibrate on touch: Vibrate when
touching soft keys and in certain other
instances.
 Emergency tone: Turn alert sound or
vibration on or off for emergency calls.
Display Settings 
Adjusting your phone‘s display settings not 
only helps you see what you want, it can also 
help increase battery life. 
Brightness 
Adjust your screen's brightness to a 
comfortable level when the lighting of your 
surroundings changes. 
1. From the home screen, touch   > 
Settings 
 
> Display > Brightness.
2. Drag the slider to adjust the brightness.
Wallpaper Settings 
Select a background image or animation for 
the home screen. See "Apply a New 
Wallpaper" in Customize the Home Screen on 
page 21. 
To access Wallpaper settings from the 
Settings menu: 
 Touch    > Settings 
 
> Display > 
Wallpaper from the home screen. 
Auto-rotate Screen 
This setting allows the screen to rotate the 
contents it displays when you rotate the phone. 
To enable the auto-rotate screen feature:   
1. From the home screen, touch   > 
Settings 
 
> Display.
2. Check Auto-rotate screen.
Sleep Setting 
Use this feature to select the time of inactivity 
before the screen turns off automatically. 
1. From the home screen, touch   > 
Settings 
 
> Display > Sleep.
2. Select your preferred time from the list.
NOTE: 
Long screen backlight setting will reduce the 
battery life. 
Daydream Settings 
Manage the Daydream function. When 
Daydream is enabled, photos or animations 
will be displayed as a screensaver. 
1. From the home screen, touch   > 
Settings 
 
> Display > Daydream.
2. Touch the on/off slider to turn Daydream
on.
3. Select Colors, Google Photos, Photo
Frame, or Photo Table as the 
screensaver.
4. Touch Start now to start the Daydream
immediately.