1. Find "Mobile Data"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-77abfe96-0fa8-4fe7-b75c-614f0f51fdaf.png?width=208&height=454)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6a446dc1-7864-4ed7-8032-99d72c639db4.png?width=208&height=454)
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-daf6ee74-1074-453b-9fa0-ee4fccaec877.png?width=208&height=454)
3. 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-daf6ee74-1074-453b-9fa0-ee4fccaec877.png?width=208&height=454)