1. Find "Mobile networks"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-3e1c2199-67b6-4b9e-bc26-d81c7284c8a5.png?width=210&height=372)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6574d0e2-3a64-403f-b9a7-49ffe3e17d09.png?width=210&height=372)
Press More.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-edbe1965-a84e-41d6-8116-444bfee09c38.png?width=210&height=372)
Press Mobile networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-f75f6bf6-dc94-4fd1-ae0b-6219f323c325.png?width=210&height=372)
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-ddae2641-9d7f-46d3-a24c-1b7d41aee1ff.png?width=210&height=372)
If you turn on data roaming, press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-e9e1c720-61f2-4a5a-a57b-9ac12b0012b6.png?width=210&height=372)
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-ddae2641-9d7f-46d3-a24c-1b7d41aee1ff.png?width=210&height=372)