My phone is saying SIM failure.
I have attempted to take SIM card out, restart phone, and turn on airplane mode.
iPhone 13 Pro Max, iOS 17
Question marked as
Go to Settings ➜ General ➜ Reset ➜ Reset Network Settings
This will delete all network related settings, including Wi-Fi passwords.
If it does not work, or it shows the same error again, contact your service provider and request a new sim for your phone.