1. Find "Mobile Data Options"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-c0bcc280-abf2-4de8-b367-e5e4f9abe776.png?width=212&height=458)
Press Mobile Service.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-f6fa2fdb-ae9a-4417-bcb7-d8c5cbb08fac.png?width=212&height=458)
Press Mobile Data Options.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-0d58cafb-c460-449a-aaab-bd1408f4a6f3.png?width=212&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-16cdb2aa-b690-4439-822f-9d9caebe0a4c.png?width=212&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-16cdb2aa-b690-4439-822f-9d9caebe0a4c.png?width=212&height=458)