1 Find "Mobile networks"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-efdede0e-2223-443e-85b3-188f527bccb8.png?width=210&height=350)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-40ca7a42-a406-4474-9760-da267b874bc8.png?width=210&height=350)
Press Mobile networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-ae7e29d0-bdaf-453a-b5ac-84f2b7c6e13e.png?width=210&height=350)
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-7695b48e-5155-4a02-a6d4-1d364c627bfa.png?width=210&height=350)
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-7695b48e-5155-4a02-a6d4-1d364c627bfa.png?width=210&height=350)