1. Find "Wi-Fi"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-003c5708-e8e3-4c08-aaf7-87391778793a.png?width=194&height=388)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-7ae0f14f-f07a-46be-83e1-87f8ea487c2e.png?width=194&height=388)
Press Network & Internet.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-948ff5c4-136f-41cf-9ab6-fd385562f76e.png?width=194&height=388)
Press Wi-Fi.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-9904a390-25c1-4802-854e-e1b39fef3de8.png?width=194&height=388)
2. Turn on Wi-Fi
Press the indicator next to "Use Wi-Fi" to turn on the function.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-db014ced-e81c-49d9-86ae-20ff2562b138.png?width=194&height=388)
3. Turn automatic use of mobile data on or off
Press Wi-Fi preferences.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-5ad49ed6-6eed-49d6-b8f4-b52793343a3d.png?width=194&height=388)
Press Advanced.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a897aa4b-39bb-4864-8b93-21015f7affb3.png?width=194&height=388)
Press the indicator next to "Switch to mobile data automatically" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-19fcb37f-a311-4ad3-9e84-d88c2bcd8bef.png?width=194&height=388)
4. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-19fcb37f-a311-4ad3-9e84-d88c2bcd8bef.png?width=194&height=388)