Find the Feature

M > Settings > Initial Setup 

> Backlight

Setting Display Timeout

You can set the display to turn itself off when no activity is 

detected for a specified time period.

Find the Feature

M > Settings > Initial Setup 

> Display Timeout

Using AGPS Location 

Information

Your phone can use Assisted Global 

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Positioning Service (AGPS) to tell the network 

where you are physically located. 

Note: You cannot use your camera while your phone is 

checking your location.

Se

Limitations of AGPS

tting Up 

Sometimes adequate signals from multiple satellites are 

unavailable, usually because your AGPS phone's antenna 

Your Phone

cannot establish a view of a wide area of open sky. In 

these cases, the AGPS feature will not work. Such 

situations include, but are not limited to, the following:

  in underground locations

  inside of buildings, trains, or other covered vehicles

  under any other metal or concrete roof or structure

  between tall buildings or under dense tree cover

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