1 Find "Mobile network"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-29ffbbbf-5776-4fd6-a30d-2cbc509f7448.png?width=212&height=424)
Press Wireless & networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-76a3dfb4-cb0d-47f1-a053-94fb02f586b4.png?width=212&height=424)
Press Mobile network.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-0261a4a7-4778-4c1a-9f3a-5b91da9e3084.png?width=212&height=424)
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-468874a1-2abf-4adc-8c25-7ef253a08323.png?width=212&height=424)
If you turn on the function, press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-32680b58-735c-4709-96af-a3e2ffb5a351.png?width=212&height=424)
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-468874a1-2abf-4adc-8c25-7ef253a08323.png?width=212&height=424)