New Phone - All accounts show 'Sign In To add your account' -Enter code from authenticator Doom Loop

Hi @Tim Blacknell,
Thank you for reaching out to Microsoft Q&A Forum.

I'm sorry to hear you're having trouble logging into your Microsoft account. This issue commonly occurs when your Multi-Factor Authentication (MFA) settings need to be reset, particularly after changing devices or reinstalling the Microsoft Authenticator app. Since your new device hasn’t been configured with the Authenticator yet, you're currently unable to access your account. The app remains linked to your previous device, which is why you're not receiving the authentication codes.

Since you are using a business email address, the MFA settings are managed by your administrator account for your work organization. For assistance with resetting or updating your MFA, you will need to use your admin account to resolve this if you still have access to it.  

 You can also follow the steps in this Microsoft article to reset your MFA settings for other accounts: Manage user authentication methods for Microsoft Entra multifactor authentication. 

Once you have reset your MFA, the next time you log in to your account, you will be guided through the process of setting up the Microsoft Authenticator app again from the beginning by scanning a QR code. This will break the loop and allow you to access your account normally.  

However, if you are the sole Global Administrator on the tenant and you lost your access to this account, please follow the steps outlined below to proceed with account recovery and regain access.

Option 1: Contact Microsoft Data Protection Support by Phone (Primary Method)  

To regain access to your admin account as you can't access the Admin Portal, you can try reaching out to our Global Customer Service phone to raise a request for resetting your authentication method here: Customer service phone numbers - Microsoft Support. During the call, request to speak to an agent, and share with them every detail related to your query and also mention that you are the only admin lost access to your account. This should allow you to contact the appropriate team so you can solve this incident as soon as possible. 

Here are some tips and an example of a prompt to help you navigate the IVR more effectively:       

In some countries, it is an automated conversation like: 

IVR: What kind of problem are you concerned about?       

You: Authenticator.       

IVR: What kind of product do you use?       

You: Office 365 for business.       

IVR confirmation: education or company account?       

You: For companies       

IVR: Are you an administrator?       

You: Yes.       

IVR: Do you have another administrator in your organization?       

You: No.       

You: Yes. I need to create a ticket. Please send me direct to the Data Protection Team.  

Option 2: Create a Temporary Account (Trial Tenant) to Submit a Support Ticket (Alternative Method) 

If you still cannot reach to a live agent, there is still a workaround, you might consider registering for a new tenant by signing up for a trial subscription via this link Microsoft 365 Business Plans and Pricing | Microsoft 365. This would allow you to create a new tenant following the prompts provided. Once set up, you can access the admin console of the new tenant and submit a support ticket requesting to speak with the Data Protection team on behalf of your previous tenant.       

Please note that forum moderators do not have access to user account settings and cannot assist with logging in, resetting passwords, or changing access rights. While we do not have access to internal systems or administrative tools required to resolve account-specific or backend-related issues, but we’ll continue doing our best to support you within the scope of our responsibilities.   

I hope this helps you regain access to your account quickly. I'm glad to assist and truly hope the information provided has been useful. Please feel free to reach out anytime if you need further assistance.  If you find my post helpful, kindly consider marking it as the accepted answer. Doing so can assist others in the community who may have similar questions in finding solutions more quickly.  Thank you for your kindness and contributions to the forum. 

If the answer is helpful, click "Accept Answer" and vote positively. If you have more questions about this answer, click "Comment".

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I need to speak to microsoft support