1. Find "Wi-Fi"
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 Wi-Fi.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-8f270506-1867-4748-a786-193f10c64354.png?width=198&height=438)
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-adafe261-afd3-4719-95ea-b0edaa97a64a.png?width=198&height=438)
3. Turn automatic use of mobile data on or off
Press Wi-Fi preferences.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-520eb137-4985-4904-9937-37570fd9b908.png?width=198&height=438)
Press Advanced.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-5cdaa76b-c8a3-45df-9e74-9a8bc19a2217.png?width=198&height=438)
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-a8426bc0-9e47-46cb-b5c4-de35443e60e1.png?width=198&height=438)
4. 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-a8426bc0-9e47-46cb-b5c4-de35443e60e1.png?width=198&height=438)