Apple ID & iCloud account
How do I get into my iCloud account when I’m setting up a new phone, and my old phone won’t turn on and it’s the only device connected to my account and I need a verification code from it to access my account?
Question marked as
Two-step verification for Apple ID - Apple Support
Goto the above support article ... Scroll down to the subtopic: What if I no longer have access to any of my trusted devices?