1 Find "Mobile networks"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-d0e3b1c0-01b8-444a-ace7-f98aae9b8879.png?width=212&height=434)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-5d67e67e-47c8-486d-8b87-2ec7d16b7324.png?width=212&height=434)
Press Connections.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-bd3b6dfe-e94b-4e86-a80b-0577bcc3f10e.png?width=212&height=434)
Press Mobile networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-353ec5ab-fdb2-435b-8f6d-2c8a6d670b78.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-e0d8f806-fd90-49b5-90d2-a1bd8f643216.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-e0d8f806-fd90-49b5-90d2-a1bd8f643216.png?width=212&height=434)