Cannot Update Carrier Settings
I have to update my carrier settings. I know this, because I've been notified about it. When I do however in fact get this notification that explains what it is and why I need to do it- it links to a website. An official apple support website that explains what I have to do to update my carrier settings. It tells me to plug it into my Mac and check for updates while holding the command button. Doesn't work. Command, Option, left click- nothing. Command right click, nothing. I turn to other websites. They tell me to go to Settings>General>About and wait for a notification- nothing. Iv'e tried everything. I don't think that it's because my antenna is broken because then I won't be getting notified to update my carrier settings, right? I'm not sure, but I'm out of options. I can't even schedule a call with Apple Support because my data doesn't work. Please get back to me as soon as possible. Thank you for everything.
iPhone 7, iOS 13