I have an iPhone 6 Plus and my Apple ID has Two-Factor Authentication enabled on it. Should I disable Two-Factor Authentication before getting the new phone so I don't end up locking myself out of my own account?
Yes, I'm trading it in at the same time I am purchasing the iPhone 7 Plus. I plan on going into the Apple Store, trading in the iPhone 6 Plus under the Apple Trade-In Program, and getting the new iPhone 7 Plus under the Apple iPhone Upgrade Program.
Nope, it asked for the password on my iPhone while the iCloud login window on the computer sat there waiting for verification. Only after I put my password in that the verification screen on the computer go away and finish the login process.
One of the options to receive your code will be an SMS message to the phone number associated with the account. You'll be fine.
Still getting used to the new Home Button, the fact that it doesn't move is really strange.