Hi,I am having huge trouble getting my Microsoft authenticator app to work on my new iPhone. i lost my old mobile.Essentially, authenticator is asking me to use Authenticator itself to enter codes, which is not possible.

2025-01-29T11:25:41.3+00:00

Hi,I am having huge trouble getting my Microsoft authenticator app to work on my new iPhone. i lost my old mobile.

Essentially, authenticator is asking me to use Authenticator itself to enter codes, which is not possible.

I cannot access my Azure Devops and it's causing huge issues. I have also tried signing into Microsoft 365 on my work laptop to try and fix the issue, and it just send me back to Authenticator again. Codes requested on my laptop do not appear in Authenticator.

Windows 10
Windows 10
A Microsoft operating system that runs on personal computers and tablets.
12,051 questions
Microsoft Authenticator
Microsoft Authenticator
A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation.
7,987 questions
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  1. Shikha Ghildiyal 3,500 Reputation points Microsoft Employee
    2025-01-29T11:57:40.72+00:00

    Hi Sravanthi, Immadi [EMR/SYSS/PSS/HYDR]

    Thanks for reaching out to Microsoft Q&A.

    As you have lost your mobile, you can go to security page- https://mysignins.microsoft.com/security-info and delete your old mobile information

    User's image

    Once you have deleted old mobile info, please click on add sign and add details again by clicking on add sign inUser's image

    Once you click on add sign in , you will be able to see steps to add authentication

    User's image

    For more details: Reference: https://learn.microsoft.com/en-us/entra/identity/authentication/howto-mfa-userdevicesettings#manage-user-authentication-options

    Please do not forget to "Accept the answer” and “up-vote” wherever the information provided helps you, this can be beneficial to other community members.

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