A protective plastic sheet is attached to the screen. You should peel off this sheet before
using the touchscreen. Otherwise, the touchscreen might not function properly.
To insert the micro SIM card
Do not insert the micro SIM card into the memory card slot.
1Insert a fingernail into the gap between the micro SIM card slot cover and the
device, then detach the cover.
2Using a fingernail, pull out the micro SIM card holder.
3Place the micro SIM card on the holder, with the gold-colored contacts on the
micro SIM card facing up.
4Insert the micro SIM card holder back into the device.
5Re-attach the micro SIM card slot cover.
Inserting the micro SIM card into the device without the SIM card holder could damage your
micro SIM card or your device, and Sony does not warrant and will not be responsible for any
damage caused by such action.
To insert the memory card
Do not insert the memory card into the micro SIM card slot.
1Insert a fingernail into the gap between the memory card cover and the device,
then detach the memory card cover.
2Place the memory card in the memory card slot, with the gold-colored contacts
facing down, then push the memory card all the way into the slot until you hear a
locking sound.
3Re-attach the memory card cover.
A memory card may not be included at purchase in all markets.
1Remove the cover of the micro SIM card slot cover.
2Pull out the micro SIM card holder.
3Remove the micro SIM card.
4Insert the micro SIM card holder back into its slot.
5Re-attach the micro SIM card slot cover.
To remove the memory card
1Turn off the device, or unmount the memory card from Settings > Storage >
Unmount SD card.
2Remove the cover of the memory card slot, then press against the edge of the
memory card and release it.
3Draw the card outwards to remove it fully.
Starting your device for the first time
The first time you start your device, a setup guide opens to help you configure basic
settings, sign in to some accounts, and personalize your device. For example, if you have
a Sony Entertainment Network account, you can sign in to it here and get set up
straightaway. And you can download Internet and Wi-Fi® settings.
You can also access the setup guide later from the Settings menu.
To turn on the device
Make sure that the battery is charged for at least 30 minutes before you turn on the device for
the first time.
1Press and hold down the power key until the device vibrates.
2If your screen goes dark, briefly press the power key to activate the screen.
3Enter your SIM card PIN when requested, then tap .
4If your screen is locked, place a finger on the screen and swipe up or down to
unlock it.
5Wait a while for the device to start.
Your SIM card PIN is initially supplied by your network operator, but you can change it later
from the Settings menu. To correct a mistake made while entering your SIM card PIN, tap .
To turn off the device
1Press and hold down the power key until the options menu opens.
2In the options menu, tap Power off.
3Tap OK.
It may take a while for the device to shut down.
Why do I need a Google™ account?
Your Xperia™ device from Sony runs on the Android™ platform developed by Google™.
A range of Google™ applications and services are available on your device when you
purchase it, for example, Gmail™, Google Maps™, YouTube™, and Google Play™—the
online store for downloading Android™ applications. To get the most out of these
services, you need a Google™ account. For example, a Google™ account is mandatory
if you want to:
•Download and install applications from Google Play™.
•Synchronize email, contacts, and the calendar.
•Chat with friends using the Hangouts™ application.
•Synchronize your browsing history and bookmarks.
For more information about Android™ and Google™, go to
www.sonymobile.com/support.
To set up a Google™ account on your device
1From your Home screen, tap .
2Find and tap Settings > Add account > Google.
3Follow the registration wizard to create a Google™ account, or sign in if you
already have an account.
You can also sign in to or create a Google™ account from the setup guide the first time you
start your device. Or you can go online and create an account at www.google.com/accounts.
Charging your device
The battery is partly charged when you buy the device. You can still use your device
while it is charging. Read more about the battery and how to improve the performance in
Battery and power management on page 118.
•Scroll left or right, for example, between Home screen panes.
Flicking
•Scroll quickly, for example, in a list or on a web page. You can stop the scrolling
movement by tapping the screen.
Locking and unlocking the screen
When your device is on and left idle for a set period of time, the screen darkens to save
battery power, and locks automatically. This lock prevents unwanted actions on the
touch screen when you are not using it.
•Place a finger on the screen and swipe up or down.
There are several ways to unlock the screen. For more information, see Setting a screen lock
on page 112.
To lock the screen manually
•When the screen is active, briefly press the power key .
Home screen
The Home screen is the starting point for using your device. It's similar to the desktop
on a computer screen. Your Home screen can have up to seven panes, which extend
beyond the regular screen display width. The number of Home screen panes is
represented by a series of dots at the top of the Home screen. The highlighted dot
shows the pane that you are currently in.
To go to the Home screen
•Press .
To browse the Home screen
Home screen panes
You can add new panes to your Home screen (up to a maximum of seven panes) and
delete panes. You can also set the pane that you want to use as the main Home screen
pane.
To set a pane as the main Home screen pane
1Touch and hold an empty area on your Home screen until the device vibrates.
2Flick left or right to browse to the pane that you want to set as your main Home
1Touch and hold an empty area on your Home screen until the device vibrates.
2Flick left or right to browse the panes, then tap .
To delete a pane from your Home screen
1Touch and hold an empty area on your Home screen until the device vibrates.
2Flick left or right to browse to the pane that you want to delete, then tap .
Application screen
The Application screen, which you open from the Home screen, contains the
applications that come pre-installed on your device as well as applications that you
download.
To view all applications on the Application screen
1From your Home screen, tap .
2Flick left or right on the Application screen.
To open an application from the Application screen
•Flick left or right to find the application, then tap the application.
To open the Application screen menu
•When the Application screen is open, drag the left edge of the screen to the right.
To move an application on the Application screen
1Open the Application screen menu and make sure that Own order is selected
under CATEGORIES.
2Touch and hold the application until it magnifies and the device vibrates, then drag
it to the new location.
To add an application shortcut to the Home screen
1From the Application screen, touch and hold an application icon until the screen
vibrates, then drag the icon to the top of the screen. The Home screen opens.
2Drag the icon to the desired location on the Home screen, then release your
1To open the Application screen menu, drag the left edge of the Application screen
to the right.
2Select the desired option under CATEGORIES.
To uninstall an application from the Application screen
1To open the Application screen menu, drag the left edge of the Application screen
to the right.
2Tap Uninstall. All uninstallable applications are indicated by .
3Tap the application that you want to uninstall, then tap Uninstall.
Navigating applications
You can navigate between applications using the navigation keys, the small apps bar,
and the recently used applications window, which lets you switch easily between all
recently used applications. Some applications are closed when you press to exit while
others continue to run in the background or pause. If the application is paused or runs in
the background, you can continue where you left off the next time you open the
application.
1Recently used applications window – Open a recently used application
2Small apps bar – Open a small app
3Task navigation key – Open the recently used applications window and the small apps bar
4Home navigation key – Exit an application and go back to the Home screen
5Back navigation key – Go back to the previous screen within an application or close the application
You can get quick access to several small apps at any time using the small apps bar. A
small app only takes up a small area of your screen, so you can interact with a small app
and another application at the same time on the same screen. For example, you can
have a web page open and then open the Calculator small app on top of it and perform
calculations. You can download more small apps from Google Play™.
To open a small app
1To make the small apps bar appear, press .
2Tap the small app that you want to open.
You can open several small apps at the same time.
To close a small app
•Tap on the small app window.
To download a small app
1From the small apps bar, tap , then tap and tap .
2Search for the small app that you want to download, then follow the instructions
to download it and complete the installation.
To move a small app
•When the small app is open, touch and hold the top left corner of the small app,
then move it to the desired location.
To minimize a small app
•When the small app is open, touch and hold the top left corner of the small app,
then drag it to the right edge or to the bottom edge of the screen.
To rearrange the small apps in the small apps bar
•Touch and hold a small app and drag it to the desired position.
To remove a small app from the small apps bar
•Touch and hold a small app, then drag it outside of the small apps bar.
To restore a previously removed small app
1Open the small apps bar, then tap .
2Touch and hold the small app you want to restore, then drag it into the small apps
bar.
To add a widget as a small app
1To make the small apps bar appear, press .
2Tap > > .
3Select a widget.
4Enter a name for the widget, if desired, then tap OK.
Widgets
Widgets are small applications that you can use directly on your Home screen. They also
function as shortcuts. For example, the Weather widget allows you to see basic weather
information directly on your Home screen. But when you tap the widget, the full Weather
application opens. You can download additional widgets from Google Play™.
1Touch and hold an empty area on your Home screen until the device vibrates,
then tap Widgets.
2Find and tap the widget that you want to add.
To resize a widget
1Touch and hold a widget until it magnifies and the device vibrates, then release
the widget. If the widget can be resized, for example, the Calendar widget, then a
highlighted frame and resizing dots appear.
2Drag the dots inward or outward to shrink or expand the widget.
3To confirm the new size of the widget, tap anywhere on the Home screen.
To move a widget on the Home screen
•Touch and hold the widget until it magnifies and the device vibrates, then drag it
to the new location.
To delete a widget from the Home screen
•Touch and hold the widget until it magnifies and the device vibrates, then drag it
to .
Lock screen
The lock screen is the screen that you see when the device is locked but the screen is
active. The lock screen can have up to five panes and you can add one widget to each
pane. You can then access these widgets from the lock screen. For example, you can
add the Calendar widget and an email widget so that you can gain quicker access to
these applications.
The Clock widget is located by default in the middle pane of the lock screen.
To add a widget to the lock screen
1To activate the screen, briefly press the power key .
2Swipe inward from the top-left area of the screen until appears, then tap it.
3If required, enter your PIN code, pattern, or password to unlock the screen.
4Find and tap the widget that you want to add.
5Follow the on-screen instructions, if necessary, to finish adding the widget.
To move a widget on the lock screen
1To activate the screen, briefly press the power key .
2Touch and hold the widget that you want to move, then drag it to the new
1To activate the screen, briefly press the power key .
2Touch and hold the widget that you want to remove, then drag it to .
Shortcuts and folders
Use shortcuts and folders to manage your applications and keep your Home screen tidy.
1Access a folder containing applications
2Access an application using a shortcut
To add a shortcut to your Home screen
1Touch and hold an empty area on your Home screen until the device vibrates and
the customization menu appears.
2In the customization menu, tap Apps.
3Scroll through the list of applications and select an application. The selected
application gets added to the Home screen.
In step 3, alternatively, you can tap Shortcuts and then select an application from the list
available. If you use this method to add shortcuts, some of the applications available allow
you to add specific functionality to the shortcut.
To move an item on the Home screen
•Touch and hold the item until it magnifies and the device vibrates, then drag the
item to the new location.
To delete an item from the Home screen
•Touch and hold an item until it magnifies and the device vibrates, then drag the
item to .
To create a folder on the Home screen
•Touch and hold an application icon or a shortcut until it magnifies and the device
vibrates, then drag and drop it on top of another application icon or shortcut.
To add items to a folder on the Home screen
•Touch and hold an item until it magnifies and the device vibrates, then drag the
item to the folder.
To rename a folder on the Home screen
1Tap the folder to open it.
2Tap the folder's title bar to show the Folder name field.
3Enter the new folder name and tap Done.
You can adapt the Home screen to your own style using wallpapers and different
themes. You can also change the wallpaper on the lock screen.
To change your Home screen wallpaper
1Touch and hold an empty area on your Home screen until the device vibrates.
2Tap Wallpapers and select an option.
To set a Home screen theme
1Touch and hold an empty area on your Home screen until the device vibrates.
2Tap Themes, then select a theme.
When you change a theme, the background also changes in some applications.
To change the wallpaper for the lock screen
1Drag the status bar downward, then tap .
2Tap Personalization > Lock screen.
3Select an option, then follow the instructions to change your wallpaper.
Status and notifications
The icons in the status bar inform you of new messages, calendar notifications, signal
strength, battery status, and activities in progress such as file downloads. You can drag
down the status bar to open the Notification panel and handle your notifications.
To open or close the Notification panel
To take action on a notification
•Tap the notification.
To dismiss a notification from the Notification panel
•Place your finger on a notification and flick left or right.
To clear all notifications from the Notification panel
•Tap Clear.
Notification light
A notification light informs you about battery status and some other events. For example,
a flashing blue light means there is a new message or a missed call.
Icons in the status bar
Status icons
The following status icons may appear on your screen:
Signal strength
No signal
Roaming
GPRS is available
EDGE is available
LTE is available
NFC is activated
3G is available
Sending and downloading GPRS data
Sending and downloading EDGE data
Sending and downloading 3G data
Network is available
Sending and downloading data
STAMINA mode is activated
Battery status
The battery is charging
GPS is activated
Airplane mode is activated
The Bluetooth® function is activated
The SIM card is not inserted
The microphone is muted
The speakerphone is on
Silent mode
Vibrate mode
An alarm is set
Synchronization is ongoing
Problem with sign in or synchronization
A Wi-Fi® connection is enabled and wireless networks are available
Depending on your service provider, network and/or region, the functions or services
represented by some icons in this list may not be available.
Notification icons
The following notification icons may appear on your screen:
New email message
New text message or multimedia message
New voicemail
Upcoming calendar event
A song is playing
The device is connected to a computer via a USB cable
Warning message
Error message
Missed call
Call ongoing
Call on hold
Call forwarding is turned on
Software updates are available
Downloading data
Uploading data
More (undisplayed) notifications
Application overview
Use the Alarm and Clock application to set various kinds of alarms.
Use your web browser to navigate and view web pages, manage bookmarks,
and manage text and images.
Use the Calculator application to perform basic calculations.
Use the Calendar application to keep track of your events and manage your
appointments.
Use the camera to take photos and record video clips.
Use the Contacts application to manage phone numbers, email addresses and
other information related to your contacts.
Access your downloaded applications.
Use the Email application to send and receive emails through both private and
corporate accounts.
Use the Facebook application to engage in social networking with friends, family
Browse and listen to FM radio stations.
Use the Album application to view and to work with your photos and videos.
Use the Gmail™ application to read, write, and organize email messages.
Search for information in your device and on the web.
View your current location, find other locations, and calculate routes using
Google Maps™.
Go to Google Play™ to download free and paid applications for your device.
Use the Messaging application to send and receive text and multimedia
messages.
Use the Movies application to play movies and other video content saved or
downloaded to your device. Or play your movies on other devices connected to
the same network.
Use the "WALKMAN" application to organize and play music, audio books and
podcasts.
Navigate your way using spoken, turn-by-turn instructions.
View news stories and weather forecasts.
Make phone calls by dialing the number manually or by using the smart dial
function.
Search for places, for example, restaurants and cafés.
Use the Video Unlimited application to rent and purchase videos.
Use the subscription-based Music Unlimited application to access millions of
songs over a mobile data connection or Wi-Fi® connection.
Optimize settings to suit your own requirements.
Use the Hangouts™ application to chat with friends online.
Identify music tracks that you hear playing in your surroundings, and get artist,
album, and other info.
Use the Help application to access user support in your device. For example,
you can access a User guide, troubleshooting information, plus tips and tricks.
Use YouTube™ to share and view videos from around the world.
Download and install new applications and updates.
Some applications are not supported by all networks and/or service providers in all areas.
Google Play™ is the official online Google store for downloading applications, games,
music, movies, and books. It includes both free and paid applications. Before you start
downloading from Google Play™, make sure that you have a working Internet
connection, preferably over Wi-Fi® to limit data traffic charges.
To use Google Play™, you need to have a Google™ account. Google Play™ may not be
available in all countries or regions.
To download an application from Google Play™
1From the Home screen, tap .
2Find and tap Play Store.
3Find an item you wish to download by browsing categories, or by using the search
function.
4Tap the item to view its details, and follow the instructions to complete the
installation.
Some applications may need to access data, settings, and various functions on your device in
order to work properly. Only install and give permissions to applications you trust.
You can view the permissions granted to a downloaded application by tapping the application
under Settings > Apps.
Downloading applications from other sources
When your device is set to allow downloads from sources other than Google Play™, you
can download applications directly from other websites by following the relevant
download instructions.
Installing applications of unknown or unreliable origin can damage your device. Only download
applications from reliable sources. Contact the application provider if you have any questions
or concerns.
To allow the download of applications from other sources
1From your Home screen, tap .
2Find and tap Settings > Security.
3Mark the Unknown sources checkbox.
4Tap OK.
Some applications may need to access data, settings, and various functions on your device in
order to work properly. Only install and give permissions to applications you trust.
You can view the permissions granted to a downloaded application by tapping the application
under Settings > Apps.
The Google Chrome™ web browser for Android™ devices comes pre-installed in most
markets. Go to http://support.google.com/chrome and click the "Chrome for Mobile" link
to get more detailed information about how to use this web browser.
To browse with Google Chrome™
1From your Home screen, tap .
2Find and tap .
3Enter a search term or web address in the search and address field, then tap Go
on the keyboard.
1Search and address field
2Refresh the page
3Access browser tabs
4View help and options
5Go back a page in the browser history
Internet and messaging settings
To access the Internet and to send multimedia messages, you must have a mobile data
connection and the correct settings, also known as APN (Access Point Name) settings.
The APN identifies the network that a mobile device can connect to.
You can usually download Internet and messaging settings when you set up your device
for the first time with a SIM card inserted. In other cases, the settings may be pre-
installed. If not, you can download or add the settings manually. Contact your network
operator for detailed information about Internet and messaging settings.
If you cannot access the Internet, have no data connection, or cannot send or receive
multimedia messages, try deleting all Internet and messaging settings and then add them
again.
To download Internet and messaging settings
1Drag the status bar downward, then tap .
2Tap More… > Internet settings.
3Tap Accept.
To add Internet settings manually
1From the Home screen, tap .
2Find and tap Settings > More… > Mobile networks > Access Point Names.
3Tap .
4Tap New APN.
5Tap Name and enter the name of the network profile that you want to create.
6Tap APN and enter the access point name.
7Enter all other information required by your network operator.
8Tap , then tap Save.
To view the current APN
1From your Home screen, tap .
2Find and tap Settings > More… > Mobile networks.
3Tap Access Point Names.
If you have several available connections, the active network connection is indicated by a
marked button.
To delete all Internet and messaging settings
1Drag the status bar downward, then tap .
2Tap More… > Mobile networks > Access Point Names.
3Tap .
4Tap Reset to default. All Internet and messaging settings are deleted.
Wi-Fi®
Use Wi-Fi® connections to surf the Internet, download applications, or send and receive
emails. Once you have connected to a Wi-Fi® network, your device remembers the
network and automatically connects to it the next time you come within range.
Some Wi-Fi® networks require you to log in to a web page before you can get access.
Contact the relevant Wi-Fi® network administrator for more information.
The signal strength of Wi-Fi® networks can differ. Moving closer to the Wi-Fi® access
point increases the signal strength.
Available Wi-Fi® networks may be open or secured:
•Open networks are indicated by next to the Wi-Fi® network name.
•Secured networks are indicated by next to the Wi-Fi® network name.
Some Wi-Fi® networks do not show up in the list of available networks because they do not
broadcast their network name (SSID). If you know the network name, you can add it manually
to your list of available Wi-Fi® networks.
To turn on Wi-Fi®
1From your Home screen, tap .
2Find and tap Settings.
3Drag the slider beside Wi-Fi to the right to turn on the Wi-Fi® function.
It may take a few seconds before Wi-Fi® is enabled.
1Make sure the Wi-Fi® function is turned on.
2Drag the status bar downward, then tap .
3Tap Wi-Fi . All available Wi-Fi® networks are displayed.
4Tap a Wi-Fi® network to connect to it. For secured networks, enter the relevant
password. is displayed in the status bar once you are connected.
Tap and then tap Scan to search for new available networks.
To add a Wi-Fi® network manually
1Make sure the Wi-Fi® function is turned on.
2Drag the status bar downward, then tap .
3Tap Wi-Fi .
4Tap .
5Enter the Network SSID information.
6To select a security type, tap the Security field.
7If required, enter a password.
8Tap Save.
Contact your Wi-Fi® network administrator to get the Network SSID and password.
Wi-Fi® settings
When you are connected to a Wi-Fi® network or when there are Wi-Fi® networks
available in your vicinity, it is possible to view the status of these networks. You can also
enable your device to notify you whenever an open Wi-Fi® network is detected.
If you are not connected to a Wi-Fi® network, your device uses a cellular data
connection to access the Internet (if you have set up and enabled a cellular data
connection on your device). By adding a Wi-Fi® sleep policy, you can specify when to
switch from Wi-Fi® to cellular data.
To enable Wi-Fi® network notifications
1Turn on Wi-Fi®, if it is not already on.
2From your Home screen, tap .
3Find and tap Settings > Wi-Fi.
4Press .
5Tap Advanced.
6Mark the Network notification checkbox.
To view detailed information about a connected Wi-Fi® network
1From the Home screen, tap .
2Find and tap Settings > Wi-Fi.
3Tap the Wi-Fi® network that you are currently connected to. Detailed network
information is displayed.
To add a Wi-Fi® sleep policy
1From the Home screen, tap .
2Find and tap Settings > Wi-Fi.
3Press .
4Tap Advanced.
5Tap Keep Wi-Fi on during sleep.
6Select an option.
Sharing your mobile data connection
You can share your device's mobile data connection with a single computer using a USB
cable. This process is called USB tethering. You can also share your device's data
connection with up to eight other devices at once by turning your device into a portable
Wi-Fi® hotspot. When your device's mobile data connection is successfully shared, the
sharing devices can use your device's data connection, for example, to surf the Internet,
download applications, or send and receive emails.
You may need to prepare your computer to establish a network connection via USB cable. Go
to www.android.com/tether to get the most current information.
To share your data connection using a USB cable
1Deactivate all USB cable connections to your device.
2Using the USB cable that came with your device, connect your device to a
computer.
3Drag the status bar downward, then tap .
4Tap More… > Tethering & portable hotspot.
5Mark the USB tethering checkbox. is displayed in the status bar once you are
connected.
6To stop sharing your data connection, unmark the USB tethering checkbox or
disconnect the USB cable.
You cannot share your device's data connection and SD card over a USB cable at the same
time.
To use your device as a portable Wi-Fi® hotspot
1Drag the status bar downward, then tap .
2Tap More… > Tethering & portable hotspot.
3Tap Portable Wi-Fi hotspot settings > Configure Wi-Fi hotspot.
4Enter the Network SSID information.
5To select a security type, tap the Security field. If required, enter a password.
6Tap Save.
7Mark the Portable Wi-Fi hotspot checkbox. is displayed in the status bar once
you are connected.
8To stop sharing your data connection via Wi-Fi®, unmark the Portable Wi-Fi
hotspot checkbox.
To rename or secure your portable hotspot
1From the Home screen, tap .
2Find and tap Settings > More… > Tethering & portable hotspot.
3Tap Portable Wi-Fi hotspot settings > Configure Wi-Fi hotspot.
4Enter the Network SSID for the network.
5To select a security type, tap the Security field.
6If required, enter a password.
7Tap Save.
Controlling data usage
You can keep track of the amount of data transferred to and from your device over your
mobile data or Wi-Fi® connection during a given period. For example, you can view the
amount of data used by individual applications. For data transferred over your mobile
data connection, you can also set data usage warnings and limits to avoid additional
charges.
Adjusting data usage settings can help you keep greater control over data usage but cannot
guarantee the prevention of additional charges.
To turn data traffic on or off
1Drag the status bar downwards, then tap .
2Tap Data usage.
3Drag the slider beside Mobile data traffic to turn data traffic on or off.
When data traffic is turned off, your device can still establish Wi-Fi® and Bluetooth®
connections.
1Make sure that data traffic is turned on.
2Drag the status bar downwards, then tap .
3Find and tap Data usage.
4To set the warning level, drag the warning line to the desired value. You receive a
warning notification when the amount of data traffic approaches the level you set.
To set a data usage limit
1Make sure that data traffic is turned on.
2Drag the status bar downwards, then tap .
3Find and tap Data usage.
4Mark the Set mobile data limit checkbox if it is not marked, then tap OK.
5To set the data usage limit, drag the corresponding line to the desired value.
Once your data usage reaches the set limit, data traffic on your device will be turned off
automatically.
To control the data usage of individual applications
1Drag the status bar downwards, then tap .
2Find and tap Data usage.
3Find and tap the desired application.
4Mark the Restrict background data checkbox.
5To access more specific settings for the application (if available), tap View app
settings and make the desired changes.
The performance of individual applications may be affected if you change the related data
usage settings.
To view data transferred via Wi-Fi®
1From your Home screen, tap .
2Find and tap Settings > Data usage.
3Tap , then mark the Show Wi-Fi usage checkbox if it is not marked.
4Tap the Wi-Fi tab.
Data roaming
Some service providers allow you to send and receive mobile data when you are
roaming outside of your home network. It's recommended to check the relevant data
transmission rates in advance.
To activate or deactivate data roaming
1Drag the status bar downward, then tap .
2Tap More… > Mobile networks.
3Mark or unmark the Data roaming checkbox.
You can’t activate data roaming when mobile data has been turned off.
Selecting cellular networks
Your device automatically switches between cellular networks depending on which
cellular networks are available in different areas. You can also manually set your device to
use a particular cellular network mode, for example, WCDMA or GSM.
To select a network mode
1From your Home screen, tap .
2Find and tap Settings > More… > Mobile networks.
3Tap Network Mode.
4Select a network mode.