1. Find "Mobile networks"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-01d5fbfe-5fa8-4abd-97e8-493b2f31eade.png?width=198&height=410)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-40a752dd-9cf6-4172-9c0b-127812b71f66.png?width=198&height=410)
Press Connections.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-9065f85a-1ff8-4b61-be30-4f95813dc8bf.png?width=198&height=410)
Press Mobile networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-93adb8c0-27d9-49ef-b6b3-ced84bad6599.png?width=198&height=410)
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-c2a3e273-e7ff-4f89-8053-dd5c3e57c204.png?width=198&height=410)
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-c2a3e273-e7ff-4f89-8053-dd5c3e57c204.png?width=198&height=410)