1. Find "Mobile Data"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-3a0fe015-fcfb-4774-bfe0-46398ee72e73.png?width=204&height=366)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a1a0a559-d479-4a87-b5f5-a8b693a6b2d5.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/7140723-f-80452421-3cbc-4eb8-8922-457faa69ee17.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/7140723-f-80452421-3cbc-4eb8-8922-457faa69ee17.png?width=204&height=366)