1 Find "Mobile network"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-59283ed6-de8d-4590-9da2-1d670e5a977d.png?width=204&height=408)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-57db14f7-4305-4ba4-872b-db7e22bd95c6.png?width=204&height=408)
Press Network & Internet.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-0d00a899-2141-4887-a438-298730e388ef.png?width=204&height=408)
Press Mobile network.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-343fd773-34c4-4621-ac52-913273f6b83c.png?width=204&height=408)
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-7933bd3c-7949-4120-9589-106cfb1ea15f.png?width=204&height=408)
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-7933bd3c-7949-4120-9589-106cfb1ea15f.png?width=204&height=408)