![Apple iPhone 11 Pro](http://wmstatic.global.ssl.fastly.net/ml/7071123-f-c8fb47ad-7f7f-4038-94d9-3b52932b46f8.png?width=150&height=320)
Apple iPhone 11 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/7071123-f-768466fe-c6a5-437d-b78f-e6a8bc65ebce.png?width=208&height=450)
Press Mobile Service.
![](http://wmstatic.global.ssl.fastly.net/ml/7071123-f-1fa9e749-ee62-431a-9e77-2b10fb13da83.png?width=208&height=450)
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/7071123-f-e13da931-ecda-4986-b281-5d7b8857cf14.png?width=208&height=450)
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/7071123-f-e13da931-ecda-4986-b281-5d7b8857cf14.png?width=208&height=450)