MFA & Verification Issues

Fix Microsoft Authenticator Not Working After Getting a New Phone

Maira Mehtab Sep 20, 2026 869 views

Question details

The user is unable to access their Microsoft business account after switching to a new phone without backing up or transferring Microsoft Authenticator data, resulting in a continuous authentication loop.

Product: Microsoft Authenticator
Device & OS: not provided
Scenario: Setting up a new phone and attempting to log into a business account without prior Authenticator backup.
Observed behavior: Trapped in a continuous authentication-code loop preventing access to the business account.

Before you start

Before proceeding, check if you have any other alternative authentication methods set up for your account, such as SMS verification or a secondary email, which might allow you to bypass the app temporarily.

Solution 1Recommended

Contact Your Organization's Microsoft 365 Administrator

The most effective way to resolve business account MFA lockouts is through your IT department, as they hold the necessary permissions to reset your sign-in methods.

Business and organizational accounts have security policies managed centrally by an IT admin. When you change devices without a backup, the system still looks for the old hardware token. Only an administrator can break this loop by resetting your multifactor authentication settings.

Identify Admin

Locate the contact information for your company's IT support desk or Microsoft 365 administrator.

Request MFA Reset

Ask the administrator to 'Require re-register MFA' or revoke existing MFA sessions for your specific user account in their Azure Active Directory or Microsoft Entra portal.

Re-register Device

Once reset by the admin, log into your Microsoft 365 account on a computer. You will be prompted to set up multifactor authentication again, allowing you to scan the new QR code with the Authenticator app on your new phone.

Solution 2

Seek Help in Microsoft Forums for Additional Guidance

If you encounter this issue with different account configurations or need further technical clarification, Microsoft Q&A is the recommended resource.

Free Microsoft Office alternative

Avoid Account Lockouts with WPS Office

Frustrated by complex account authentication loops and lockouts? WPS Office offers a straightforward, lightweight, and free alternative to Microsoft Office. Enjoy seamless document editing without being tied down by restrictive enterprise login loops.

1. Download WPS Office: Visit the official website and click the download button to get the free installer.
2. Install the Software: Run the setup file and follow the quick installation wizard.
3. Open Your Files: Drag and drop your existing Microsoft Office files directly into WPS Office to continue working immediately.

Fully compatible with Microsoft Office formats (.docx, .xlsx, .pptx).Lightweight design with fast installation and setup.No complex MFA enterprise lockouts for basic local document editing.Free to use with a familiar, user-friendly interface.

Frequently Asked Questions

Can I recover Microsoft Authenticator data on a new phone without the old one?

If you did not enable cloud backup on your old phone before losing access to it, you cannot directly recover the Authenticator app data. For business accounts, your IT admin must reset your MFA.

Why does Microsoft Authenticator keep asking for a code I can't receive?

This happens when your account is still tied to the physical device identity of your old phone. The system is sending the hidden prompt to the old device, creating a locked loop when you try to sign in on the new one.

How do I backup Microsoft Authenticator for the future?

Open the Authenticator app, go to Settings, and toggle on 'Cloud backup' (iOS) or 'Cloud Backup' (Android). This requires a personal Microsoft account to securely store the encrypted backup credentials.

Login & Account Issues