No SIM card
My iPhone shows that that it has no SIM card but it does and I already tried everything to try and fix it but for a reason a I can’t do it
iPhone 11 Pro Max, iOS 14
Remove your SIM card from the SIM card tray and then put the SIM card back. ... Make sure that the SIM tray closes completely and isn't loose. If you use a SIM tray from a different model iPhone, iPad, or from another phone manufacturer, it might not fit properly.
If you see 'invalid SIM' or 'no SIM' on your iPhone or iPad ...