I know this question has been asked before - or similar. I really don't understand Google Authenticator. If I have set up 2FA on my old phone and can no longer use my old phone - how do I login to these various websites (e.g. cryptocurrency exchanges) with my new phone?
I think I misunderstood Backup Codes - I thought if I downloaded these backup codes I would be able to use them to access my favourite crypto website. But these are 8-digit codes, and my crypto websites require 6-digit 2fa codes.
Some websites will help you if you don't have access to your 2fa. I thought the point in the backup codes was to enter with new 6-digit codes, but clearly not. Is it possible to see on a new phone all the logins I had previously set up on my old phone? I mean, if I had 15 logins set up on old phone - How can recover all that entire set-up?