Microsoft Authenticator app issues

To connect your account to a new phone or the Microsoft Authenticator app after losing access to the original device, you will need to follow these steps:

1. Recover Access to Your Account: If you cannot receive the code from the old authenticator app, you may need to use alternative recovery methods. Check if you have set up any backup authentication methods such as SMS or email verification.
2. Contact Your Administrator: If you are part of an organization, reach out to your IT administrator. They can reset your multifactor authentication (MFA) settings, allowing you to re-register your account with the new phone.
3. Re-register MFA: Once your administrator has reset your MFA settings, you can set up the Microsoft Authenticator app on your new phone. Follow the instructions provided in the app to link your account again.
4. Use the Microsoft Authenticator App: After re-registering, ensure that you have the Microsoft Authenticator app installed on your new phone. You can then scan the QR code or enter the setup key provided during the MFA setup process.

If you are the only administrator for your Microsoft Entra ID, you can manage your sign-in methods directly through the security settings in a web browser.

For more detailed instructions on managing MFA settings, you can refer to the Microsoft documentation.