Apple iPhone 12
Reset network settings
If you have problems using network configurations on your phone, such as mobile data, Wi-Fi or Bluetooth, resetting the network settings may help.
Press Settings.
Press General.
Press Transfer or Reset iPhone.
Press Reset.
Press Reset Network Settings.
Press Reset Network Settings.
Slide your finger upwards starting from the bottom of the screen to return to the home screen.
1. 1. Find "Reset Network Settings"
2. 2. Reset network settings
3. 3. Return to the home screen