1. Find "Mobile network"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-637d3391-6eab-4aa3-8fe4-bd7f7faf78e8.png?width=206&height=434)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-af3fb3f3-15d8-4ea5-a0b6-2538d96ea4f8.png?width=206&height=434)
Press Network & Internet.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-56e563cb-fcf6-41ac-b350-7c9a67e34098.png?width=206&height=434)
Press Mobile network.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-162761ab-b2fa-4fb5-852a-3f73a01b840d.png?width=206&height=434)
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-4658f03a-e0ab-4800-ae48-7c0c7aab267d.png?width=206&height=434)
If you turn on the function, press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-591136b2-208b-482f-8743-6f72716f49d7.png?width=206&height=434)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-4658f03a-e0ab-4800-ae48-7c0c7aab267d.png?width=206&height=434)