1. Find "Mobile network"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-49f60437-adb5-40ef-9479-04d8f43a628c.png?width=198&height=438)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-9fd1f528-028d-4a03-b872-de91b0054e96.png?width=198&height=438)
Press Network & Internet.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-91e72fa8-56be-422c-aa5c-34d33cf8fecb.png?width=198&height=438)
Press Mobile network.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-8f270506-1867-4748-a786-193f10c64354.png?width=198&height=438)
2. Turn data roaming on or off
Press the indicator next to "Roaming" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-b22eebe2-a440-4ae7-85c4-60da7c0512b3.png?width=198&height=438)
If you turn on the function, press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a9096059-4402-4dee-a587-af384d9a8d22.png?width=198&height=438)
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-b22eebe2-a440-4ae7-85c4-60da7c0512b3.png?width=198&height=438)