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Chapter 13: Managing Your Phone
Use assisted GPS
Check to use GPS assistance data to speed up GPS positioning.
AGPS settings
Set up AGPS settings.
Location & Google search
Let Google use your location to improve search results and other services.

13.3.3 Security

Set device security options.
To configure the settings, tap Settings > Security.
Screen lock
Set the lock screen by sliding the screen or with a pattern, PIN, or password.
- None: The device is not protected.
- Slide: Slide to lock icon to unlock the phone.
- Pattern: Trace the correct unlock pattern on the screen to unlock the phone.
- PIN: Enter a PIN number to unlock the phone.
- Password: Enter a password to unlock the phone.
Owner info
Show owner information on the lock screen.
Encrypt phone
Require a numeric PIN or password to decrypt your phone each time you power on
the device.
Set up UIM(SIM) cards lock
Set up SIM card to lock or change the SIM pin codes.
Make passwords visible
Show passwords as you type.
Device administrators
View or deactivate device administrators.
Unknown sources
Allow installation of non-Google Market applications.
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