User's Manual

6
Note:
Ensure that the plug of the charger, the plug of the earphone, and the plug of the USB cable
are inserted in the right direction. Inserting them in a wrong direction may cause charging failure
or other problems.
Before the charging, ensure that the standard voltage and frequency of the local mains supply match
the rated voltage and power of the travel charger.
Optimizing battery life
You can extend your battery’s life between charges by turning off features that you don’t need.
You can also monitor how applications and system resources consume battery power.
To guarantee the optimal performance of your battery, please stick to the following rules:
 Turn off radios that you aren’t using. If you aren’t using WI-FI, Bluetooth, or GPRS, use the
Setting application to turn them off.
 Turn down screen brightness and set a shorter screen timeout.
 If you don’t need them, turn off automatic syncing for Gmail, Calendar, Contacts, and other
applications.
Note: On the Home screen, press Menu icon and touch Settings > More >Battery .The Battery
Use screen lists the applications that have been using the battery,from greatest to least battery
use.The top of the screen displays the time since you were last connected to a charger or, if you’re
currently connected to one, how long you were running on battery power before you connected to a
charger.Then each application or service that used battery power during that time is displayed, in
order of the amount of power they used.Touch an application in the Battery Use screen to learn
details about its power consumption.Different applications offer different kinds of information.
3.3Linking to the Networks and devices
Your phone can connect to a variety of networks and devices, including mobile networks for
voice and data transmission, WI-FI data networks,and Bluetooth devices, such as headsets. You can
also connect your phone to a computer, to transfer files from your phone’s SD card and share your
phone’s mobile data connection via USB.
Connecting to mobile networks
When you assemble your phone with a SIM card,your phone is configured to use your provider’s
mobile networks for voice calls and for transmitting data.
Connecting to WI-FI networks
WI-FI is a wireless networking technology that can provide Internet access at distances of up
to 100 meters, depending on the WI-FI router and your surroundings.
Touch Settings>Network>WI-FI.Check WI-FI to turn it on.The phone scans for available
WI-FI networks and displays the names of those it finds. Secured networks are indicated with a
Lock icon.
Note: If the phone finds a network that you connected to previously, it connects to it
automatically.
Touch a network to connect to it.If the network is open, you are prompted to confirm that you