Xiaomi Mi 11 Ultra
Android 11.0
1 Find "Wi-Fi"
Press Settings.
Press Wi-Fi.
2 Turn on Wi-Fi
Press the indicator next to "Wi-Fi" to turn on the function.
3 Turn automatic use of mobile data on or off
Press Wi-Fi assistant.
Press Select best networks automatically.
Press the indicator next to "Select best networks automatically" to turn the function on or off.
4 Return to the home screen
Press the Home key to return to the home screen.