1. Find "Mobile Data"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-86c7b86b-d263-4415-9b4f-5aaf4dca98e7.png?width=204&height=366)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-286e46ab-8e84-45a7-a94b-6dd47e419a89.png?width=204&height=366)
2. Turn automatic use of mobile data on or off
Press the indicator next to "Wi-Fi Assist" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-fd0605c4-9e13-463d-ab8b-ae8d13f4fec6.png?width=204&height=366)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-fd0605c4-9e13-463d-ab8b-ae8d13f4fec6.png?width=204&height=366)