![Apple iPhone 12 mini](http://wmstatic.global.ssl.fastly.net/ml/7051023-f-ad7b5b66-e4b2-48cf-85d0-b7dd68294ec2.png?width=150&height=320)
Apple iPhone 12 mini
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/7051023-f-89c81eab-2c19-4853-b9e2-4353ee0849be.png?width=210&height=454)
Press Mobile Service.
![](http://wmstatic.global.ssl.fastly.net/ml/7051023-f-7de16d0c-34ef-4975-99e3-d828ef0e0533.png?width=210&height=454)
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/7051023-f-e05645f5-8c58-4748-b757-5b29605f2f97.png?width=210&height=454)
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/7051023-f-e05645f5-8c58-4748-b757-5b29605f2f97.png?width=210&height=454)