General sync settings
Touch the switch 
to permit applications to synchronize data in the background, whether or not you are actively working in them. Unmarking this setting can save battery power and lowers (but does not eliminate) data use.
Touch an account to see all sync options. Mark the checkbox to permit applications to synchronize data on their own schedule.
You can also touch Menu icon 
and Sync now to synchronize data for chosen items of that account.
11.3.2Location services
Use GPS satellites
Check to use your phone’s global positioning system (GPS) satellite receiver to pinpoint your location within an accuracy as close as several meters (“street level”). The process of accessing the GPS satellite and setting your phone's precise location for the first time will require up to 5 minutes. You will need to stand in a place with a clear view of the sky and avoid moving. After this, GPS will only need
11.3.3Security
Set up Screen lock
•None Touch to disable screen unlock security.
• Slide | Touch to enable slide unlock mode. |
•Pattern Touch to draw pattern to unlock screen.
• PIN | Touch to enter a numeric PIN to unlock screen. |
•Password Touch to enter a password to unlock screen.
•Face unlock Touch to look at your phone to unlock screen.
Owner info
Touch to input owner information which will display on the lock screen.
Encrypt phone
You can encrypt your accounts, settings,download apps and their data, media and other files by touching Encrypt phone.
Set up SIM card lock
Choose a SIM card you want to configure.
Mark the checkbox of Lock SIM card to lock the SIM card with PIN code.
Touch Change SIM PIN to change the PIN code.
Make passwords visible
Mark the checkbox to show passwords as you type.
Device administrators
Touch to view or deactivate device administrators.
Unknown sources
Mark the checkbox to permit installation of applications that you obtain from web sites, emails, or other locations other than Android Market.
To protect your phone and personal data, download applications only from trusted sources, such as Android Market.
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