I can't open access my authenticator app

Nathaniel Ron 0 Reputation points
2026-10-17T19:07:29.6066667+00:00

I boughty a new phone and trade in my old one. now I can't access anything using the code. I don't have any past codes from before, nor cloud back up on my phone. How do I make my new phone the main authenticator again?

Microsoft Security | Microsoft Authenticator

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  1. Heimerdinger 1,210 Reputation points Independent Advisor
    2026-10-18T03:16:13.9933333+00:00

    Hi @Nathaniel Ron, 

    Thank you for posting your question in the Microsoft Q&A forum. 

    I’m very sorry to hear about your situation. Regarding that you’re unable to log in to your account.  

    May I ask are you an end user or an administrator in your organization?         

    If you are an end user I would recommend you contact your account's Admin to reset your MFA settings through the Microsoft Entra Admin Center. Ask your administrator to follow these steps:                  

    Revoke MFA sessions and require re-register in the Microsoft Entra admin center         

    1. Sign in to Microsoft Entra admin center with the admin account   
    2. Go to Users   
    3. Select the affected user account   
    4. Open Authentication methods   
    5. Revoke sessions   
    6. Select Require re‑register MFA   
    7. Save the changes                 

    Revoke MFA sessions and require re-register in the Microsoft Entra admin center                

     User's image

      

    You could provide your admin this article for a better view: Manage authentication methods for Microsoft Entra multifactor authentication - Microsoft Entra ID |…               

    If you’re unsure who the Global Admin is within your organization, you can find guidance on locating them here: How do I find my Microsoft 365 admin? - Microsoft Support.                  

    Please note that I'm also a user so I don’t have access to user accounts and cannot assist with actions such as password resets, login changes, or account recovery. 

    Thank you again for your time and understanding. I really appreciate your patience, and I’m here to help. Looking forward to your response.          

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