1. Find "Mobile networks"
Slide two fingers downwards starting from the top the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-76e3603b-ef71-4b6f-b57c-504873832387.png?width=216&height=384)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-7cd214b9-4362-4ae2-87b0-cc95696eedb5.png?width=216&height=384)
Press More.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-3361517b-bebc-4cc3-bcb5-65497a48a317.png?width=216&height=384)
Press Mobile networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-7cd1c401-89d1-46dc-b314-f81ba941b3ef.png?width=216&height=384)
2. Turn data roaming on or off
Press the indicator next to "Data roaming" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-cd71290a-b028-4a18-9df7-9abc41b2bbe2.png?width=216&height=384)
If you turn on data roaming, press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-4bca5163-aae8-4e58-bc4b-0cdc3b08c122.png?width=216&height=384)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-cd71290a-b028-4a18-9df7-9abc41b2bbe2.png?width=216&height=384)