I have problems using the internet connection on my Apple iPhone 12 Pro Max

Press Settings.

Press Mobile Service.

Press Mobile Data Network.

idata.o2.co.uk

idata.o2.co.uk

Press APN and key in idata.o2.co.uk.

vertigo

vertigo

Press Username and key in vertigo.

password

password

Press Password and key in password.

Press arrow left to save the settings.

Slide your finger upwards starting from the bottom of the screen to return to the home screen.

Press Settings.

Press Mobile Service.

Press the indicator next to 'Mobile Data' to turn the function on or off.

Press the indicators next to the required applications to turn the function on or off.

Slide your finger upwards starting from the bottom of the screen to return to the home screen.

Press Settings.

Press Mobile Service.

Press Mobile Data Options.

Press the indicator next to 'Data Roaming' to turn the function on or off.

Slide your finger upwards starting from the bottom of the screen to return to the home screen.

Press the Top volume key.

Press the Bottom volume key.

Press and hold the Side button until your phone restarts.