Sony LT22i manual Mobile network settings, Turning off data traffic, Data roaming

To control the data usage of individual applications

1From your Home screen, tap .

2Find and tap Settings > Data usage.

3Find and tap the desired application.

4Mark the Restrict background data checkbox.

5To access more specific settings for the application, tap View app settings and make the desired changes.

Specific settings for an application may not always be accessible.

The performance of individual applications may be affected if you change the related data usage settings.

Mobile network settings

Your device automatically switches between mobile networks depending on what mobile networks are available in different areas. You can also manually set your device to use a particular mobile 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.

To select another network manually

1From the Home screen, tap .

2Find and tap Settings > More… > Mobile networks > Service providers.

3Tap Search mode > Manual.

4Select a network.

If you select a network manually, your device will not search for other networks, even if you move out of range of the manually selected network.

To activate automatic network selection

1From the Home screen, tap .

2Find and tap Settings > More… > Mobile networks > Service providers.

3When a pop-up window appears, tap Search mode.

4Tap Automatic.

Turning off data traffic

You can disable all data connections over mobile networks to avoid any unwanted data downloads and synchronisations. Contact your network operator if you need detailed information about your subscription plan and data traffic charges.

When data traffic is turned off, you can still use Wi-Fi® and Bluetooth™ connections. You can also send and receive multimedia messages.

To turn off all data traffic

1From your Home screen, tap .

2Find and tap Settings > More… > Mobile networks.

3Unmark the Mobile data traffic checkbox.

Data roaming

Some network operators allow mobile data connections via mobile networks when you are outside of your home network (roaming). Note that data transmission charges may apply. Contact your network operator for more information.

Applications may sometimes use the Internet connection in your home network without any notification, for example, when sending search and synchronisation requests. Additional

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