![Apple iPhone 14 Plus](http://wmstatic.global.ssl.fastly.net/ml/7290923-f-f6c6b4d3-30e0-4325-bf7d-9ea24ea1d322.png?width=150&height=320)
Apple iPhone 14 Plus
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/7290923-f-120f38f6-0a78-4d80-bf49-b68f6daa457d.png?width=210&height=456)
Press Mobile Service.
![](http://wmstatic.global.ssl.fastly.net/ml/7290923-f-f6fa2fdb-ae9a-4417-bcb7-d8c5cbb08fac.png?width=210&height=456)
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/7290923-f-d5c46d46-9835-4b68-a2e3-4cb00c651ae6.png?width=210&height=456)
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/7290923-f-d5c46d46-9835-4b68-a2e3-4cb00c651ae6.png?width=210&height=456)