How to migrate accounts to new Google Authenticator app? I broke my cellphone which had the Google Authenticator app and several other accounts attached to it for two factor authentication like Dropbox, Evernote, AWS, etc. Now I got a new phone and installed the Google Authenticator app on it as per the instructions given here - https://support.google.com/accounts/answer/185834?hl=en#phone

But now in this app I don't see codes for other accounts (Dropbox, Evernote, etc.). Is there a way to get all of them migrated to this new app or I need to recreate them?
Also, if I need to recreate them, how do I do it, because Evernote won't even let me sign in from any device w/o two factor authentication code.
I can use backup codes for some accounts, but I don't have backup codes for all of them?

Please provide some suggestions. Thank you.
This is actually what you have to use backup codes for.
If you can still access your old device and it's rooted you can backup the database and restore it on your new phone.

However, if you can no longer access your old phone and you do not have recovery codes you have to contact their support and sort it out with them.

This is the purpose of two-factor authentication, if the second factor is inaccessible you can no longer access your account. If someone knows your password they can't do anything without your phone aswell.

This is also why services like authy are really sketchy due to the second factor not being offline-only.