Hi,
The process is to restore from backup, hope you had backup configured in the phone check the steps here - back-up-and-recover-account-credentials-in-the-authenticator-app-bb939936-7a8d-4e88-bc43-49bc1a700a40
Hope this helps.
==
Please "Accept the answer" if the information helped you. This will help us and others in the community as well.