To activate automatic network selection
1From the Home screen, tap 
.
2Find and tap Settings > More… > Mobile networks > Service providers.
3Tap 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
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 charges may apply when such Internet connections are established while you are roaming. Consult your network operator for more information.
To activate data roaming
1From the Home screen, tap 
.
2Find and tap Settings > More… > Mobile networks.
3Mark the Data roaming checkbox.
You can’t activate data roaming when data connections have been deactivated.
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