![Apple iPhone 13](http://wmstatic.global.ssl.fastly.net/ml/7021123-f-9e516964-b50c-45f0-8319-4c9e9dbf9f32.png?width=150&height=320)
Apple iPhone 13
iOS 17
Turn Wi-Fi Assist on or off
You can set your phone to use mobile data automatically when the connection to the Wi-Fi network is weak. To turn Wi-Fi Assist on or off, you need to turn on mobile data.
1. 1. Find "Mobile Service"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7021123-f-df72e3c6-38f3-4fef-91a5-dce1a01dc8aa.png?width=212&height=458)
Press Mobile Service.
![](http://wmstatic.global.ssl.fastly.net/ml/7021123-f-64dd2033-dfd1-4082-a946-35f4ec534af9.png?width=212&height=458)
2. 2. Turn Wi-Fi Assist 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/7021123-f-92904f53-e258-4e53-b407-5ac6b6dd91f0.png?width=212&height=458)
3. 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/7021123-f-92904f53-e258-4e53-b407-5ac6b6dd91f0.png?width=212&height=458)