1. Find "Mobile networks"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-f3f1c5c2-0b7c-420e-b35f-30c56d2f5863.png?width=212&height=434)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-00ed165e-6505-48dd-af4c-070fc489ed1f.png?width=212&height=434)
Press Connections.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-4d88bad1-8172-4ff1-94fd-8a0e039481c9.png?width=212&height=434)
Press Mobile networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-102e0548-0c0b-4bd3-af98-453e424efff2.png?width=212&height=434)
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-c1c4f6d1-53b0-4774-92e0-4da4bb56d1bb.png?width=212&height=434)
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-c1c4f6d1-53b0-4774-92e0-4da4bb56d1bb.png?width=212&height=434)