1. Find "Mobile Data Options"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-9c704824-a22a-42ff-9745-1265194aec5d.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-a2a3305f-6048-4e9c-bf07-034326828d63.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)