1. Find "Mobile networks"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-663541c1-679f-4e7d-8afc-bc1cc46f4e03.png?width=204&height=418)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-368c6482-171a-4564-a97a-6b7a5d3311cc.png?width=204&height=418)
Press Connections.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6c090f5c-00a2-4170-824c-34d4453a4324.png?width=204&height=418)
Press Mobile networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-04f18d4b-24fa-4476-ae11-ba33a57b1674.png?width=204&height=418)
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-205f10a2-cf13-4923-ad5b-44d209a57f10.png?width=204&height=418)
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-205f10a2-cf13-4923-ad5b-44d209a57f10.png?width=204&height=418)