The stupid thing about resetting your phone for a major Android upgrade / update, you lose all connections within Google Authenticator. Why? It should be related to your gmail-account. So now Teamviewer does'nt appear anymore in Google Authenticator. But there isn't any recovery possible with your Teamviewer registered e-mail address, phone number or something else? I don't have the backup recovery codes... What to do now?
... View more