1. Find "Mobile data"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-2f135371-97ee-4552-8ab2-65e67f457b52.png?width=210&height=460)
Press Mobile network.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-2b421aa7-5b96-4afe-9695-d792b732936d.png?width=210&height=460)
Press Mobile data.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-9475a315-88a9-48d8-8b73-79b337ed8db4.png?width=210&height=460)
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-f9057782-4afd-4c21-951d-4213f187192a.png?width=210&height=460)
If you turn on the function, press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-c2d1f740-061c-4c9c-8ae2-0ac3b0998b8f.png?width=210&height=460)
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/7140723-f-f9057782-4afd-4c21-951d-4213f187192a.png?width=210&height=460)