1. Find "Mobile Data"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-0deb72e5-1a49-47c5-beaf-4bc15210fbcb.png?width=208&height=368)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6d106242-6ab2-4613-b680-326097f18fa2.png?width=208&height=368)
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-f42506b8-83d2-4f0d-91cd-544c0dfcebc5.png?width=208&height=368)
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-f42506b8-83d2-4f0d-91cd-544c0dfcebc5.png?width=208&height=368)