1 Find "Mobile Data Options"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-d914e9e4-5aff-4689-9a15-1bc4b7bc1582.png?width=210&height=458)
Press Mobile Service.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-64dd2033-dfd1-4082-a946-35f4ec534af9.png?width=210&height=458)
Press Mobile Data Options.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-2cae1a91-ab52-45b6-872b-1c7d03ab4cb9.png?width=210&height=458)
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/7151223-f-5dc4389e-5dda-4236-a0ca-2eb8f09c95e6.png?width=210&height=458)
3 Return to the home screen
Slide your finger upwards starting from the bottom of the screen to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-5dc4389e-5dda-4236-a0ca-2eb8f09c95e6.png?width=210&height=458)