![Apple iPhone 13 Pro](http://wmstatic.global.ssl.fastly.net/ml/7171023-f-68042a5f-bba6-4a30-b59f-fd741f4dcd21.png?width=150&height=320)
Apple iPhone 13 Pro
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/7171023-f-d914e9e4-5aff-4689-9a15-1bc4b7bc1582.png?width=210&height=458)
Press Mobile Service.
![](http://wmstatic.global.ssl.fastly.net/ml/7171023-f-64dd2033-dfd1-4082-a946-35f4ec534af9.png?width=210&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/7171023-f-32128b09-614e-4851-b595-d8e995dffc22.png?width=210&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/7171023-f-32128b09-614e-4851-b595-d8e995dffc22.png?width=210&height=458)