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Lost MFA access after device migration (No backup)

Pimthada Sahachatiraklap 0 Reputation points
2026-02-24T06:19:51.0066667+00:00

Dear Microsoft Support Team,

I am writing to request urgent assistance regarding my Microsoft Authenticator access.

I have recently switched to a new iPhone and transferred data using iOS transfer. However, I encountered the following issues:

  1. I did not perform a manual backup of the "Authenticator App" data on my old device before the transfer.

I cannot log in to the Authenticator app on my new device.

  1. I am unable to receive or generate any security codes.

I need to recover my Authenticator access or have my MFA (Multi-Factor Authentication) reset so I can re-enroll my new device.

Could you please provide guidance or steps to recover my access?

Account Details:

Issue: Lost MFA access after device migration (No backup)

Thank you for your prompt assistance.

Best regards,

Microsoft Security | Microsoft Authenticator
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  1. Q&A Assist
    2026-02-24T06:20:00.0966667+00:00
    AI generated content. This question contains an answer created with AI from Q&A Assist. Learn more

    To regain access to your Microsoft Authenticator after migrating to a new device without a backup, you can follow these steps:

    1. Contact Microsoft Support: Since you cannot access the Authenticator app on your new device, the most effective way to resolve this issue is to contact Microsoft Support directly. Explain your situation and request a reset of your Multi-Factor Authentication (MFA) settings. You may need to verify your identity during this process.
    2. Use Alternative Authentication Methods: If you have set up alternative methods for MFA (like SMS or email), try using those to log in to your account. If you can access your account this way, you can then reconfigure your MFA settings.
    3. Temporary Account Creation: If you are unable to reach support through your existing account, consider creating a temporary account (trial tenant) to submit a support ticket. This can help you get in touch with the Data Protection team on behalf of your original account.
    4. Follow Up: After contacting support, follow up to ensure your request is being processed. It may take some time, but persistence can help expedite the resolution.

    These steps should assist you in recovering access to your Microsoft Authenticator and resetting your MFA settings.

    References:

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