1. Find "Wi-Fi"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-33f987e6-fbb6-4fbc-824e-5e3a60c7e651.png?width=194&height=440)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-8323c9e6-df24-45b8-8cc3-ac07d5b082cb.png?width=194&height=440)
Press Network and Internet.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-27f03e40-ab1b-4c1c-afac-589865f9deea.png?width=194&height=440)
Press Wi-Fi.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-1720ccc8-60ec-49b8-b058-fd0cdf99e8ef.png?width=194&height=440)
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-ce1155a1-e5fd-4b27-9e62-3a6ac72aad48.png?width=194&height=440)
3. Turn automatic use of mobile data on or off
Press Wi-Fi preferences.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-ac8328f1-db97-4f2a-be66-177c99bd5b64.png?width=194&height=440)
Press Advanced.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-b065f045-8493-4580-bb0a-897a98f2a6a1.png?width=194&height=440)
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-c0e5ec87-bfc5-49d4-9f04-2349f1150b14.png?width=194&height=440)
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-c0e5ec87-bfc5-49d4-9f04-2349f1150b14.png?width=194&height=440)