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
1Drag the status bar downwards, then tap .
2Find and tap More… > Mobile networks > Service providers.
3Tap Search mode > Automatic.

Data roaming

Some network operators 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
1From your Home screen, tap .
2Find and tap Settings > More… > Mobile networks.
3Mark or unmark the Data roaming checkbox.
You can’t activate data roaming when mobile data is turned off.
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