MFA & Verification Issues

Fix Microsoft Authenticator Not Showing Codes After Changing Phones

Phi Hung Vo Oct 1, 2026 871 views

Question details

The user is unable to see verification codes or approval prompts in Microsoft Authenticator after switching to a new mobile device, preventing them from logging into their work email and services.

How to Fix Microsoft Authenticator Not Showing Codes or Approval Requests

Product: Microsoft Authenticator
Device & OS: not provided
Scenario: Trying to log into work email or enterprise services using a newly purchased phone.
Observed behavior: The Microsoft Authenticator app does not display any two-step verification codes or push approval notifications for the registered work or school account.

Before you start

Ensure your new phone is connected to a stable Wi-Fi or cellular network. Do not delete the Authenticator app or remove your account from your old phone yet, as you may need it to approve the setup on your new device.

Solution 1Recommended

Re-register Your Work Account on the New Device

Security tokens do not automatically transfer between devices. You must register your new phone with your organization's security system to receive codes.

When you move Microsoft Authenticator to a new phone, cloud backups will restore your account names, but they will not transfer the actual security tokens for work or school accounts. This requires a manual re-registration process to ensure unauthorized parties cannot clone your MFA tokens.

Access your organization's security portal

On a computer, open a web browser and navigate to the Microsoft My Sign-Ins or your company's designated security info page.

Add a new sign-in method

Log in to your account. If prompted for MFA, choose 'Sign in another way' and use a secondary method like SMS or your old phone. Once logged in, click on 'Add method' and select 'Authenticator app'.

Scan the QR code

Open Microsoft Authenticator on your new phone, tap the '+' icon to add a work or school account, and scan the QR code displayed on your computer screen.

Contact your IT Administrator

If you cannot log in to the web portal because your old phone is unavailable and no secondary methods are set up, you must contact your organization's IT helpdesk. Ask them to 'Require re-register MFA' or revoke your old MFA sessions so you can set it up from scratch.

Re-register Your Work Account on the New Device

Admin Assistance Required: For strict enterprise environments, users cannot self-service an MFA reset. You will be locked out until your IT administrator clears your previous device from the active directory.

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Frequently Asked Questions

Why didn't my Authenticator accounts transfer when I restored my new phone?

For security reasons, Microsoft Authenticator does not export the cryptographic keys for work, school, or heavily secured personal accounts. Restoring from a backup only recovers the account names; the actual verification capability must be manually reactivated on the new device.

Can I recover my Microsoft Authenticator codes if I lost my old phone?

If you had cloud backup enabled, you can recover personal accounts by logging into your Microsoft account. However, for work or school accounts, you will almost always need to contact your IT administrator to reset your MFA status before you can register a new phone.

What if I am not getting push notifications but can see the 6-digit code?

Ensure that notifications are enabled for the Authenticator app in your phone's system settings. Additionally, check that battery optimization features aren't restricting the app from running in the background. If the problem persists, you can still type the 6-digit code manually to log in.

How do I backup Microsoft Authenticator for future phone upgrades?

Open the Authenticator app, go to Settings, and toggle on 'Cloud Backup' (iOS) or 'Cloud Backup' (Android). Be aware that while this saves you time setting up personal accounts, enterprise accounts will still require manual re-registration upon recovery.

Login & Account Issues