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settings screens to select specific ring tones.
Dial pad touch tones: Select to have a tone sound when you use the on-screen
Dialer.
Touch sound: Select to have a sound play when you select an item on the screen
either using touch.
Display
Brightness: Select to open the brightness control, and then slide your finger
along the brightness bar to set the level. In sunlight, increase the level.
Sleep: Select to decide how long your phone must be inactive before the screen
turns off.
Storage
View and manage the data storage on your phone.
Applications
Unknown sources: Select this check box if you want the ability to download
applications from the Web. With this check box not selected, you will only be
able to download applications from Android Market. To ensure your personal
data and phone remain secure; it is recommended you not select this check box.
Manage applications: View all the applications stored on your phone and how
much space they occupy. If you’ve downloaded an application from Android
Market, you can uninstall it from this screen.
3.3 Personal
Location access
My Location: Select a source for determining your location: Wireless networks,
or GPS satellites. Typically GPS will be more accurate (to street level) but it
consumes more battery power.
Security
Screen unlock pattern: Create a pattern you will be asked to draw before your
screen will unlock. You can select to make the pattern visible or invisible as you
draw it.
SIM card lock settings: Lock your SIM card for extra security. You can also
change your SIM card PIN from this screen. If you don’t know your SIM PIN,
you can obtain it from your wireless operator.
