I lost access to my microsoft authenticator app. I need help in restoring it's backup.

Question

My mobile has been damaged recently and i have lost access to my Microsoft authenticator app. It contains most of my 2FAs. The data in the mobile has been erased. And now I want restore the backup keys in my new phone. But it wont happen, I don't know why.

Answer 1

You can restore from backup (assuming there was one) but make sure no accounts have been added to the newly install app. Then sign on with recovery account to do the restore.

You can recover your account credentials from your cloud account, but you must first make sure that the account you're recovering doesn't exist in the Microsoft Authenticator app. For example, if you're recovering your personal Microsoft account, you must make sure you don't have a personal Microsoft account already set up in the authenticator app. This check is important so we can be sure we're not overwriting or erasing an existing account by mistake.
https://support.microsoft.com/en-us/account-billing/back-up-and-recover-account-credentials-in-the-authenticator-app-bb939936-7a8d-4e88-bc43-49bc1a700a40

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