Changing new phone and got suck in MFA

Dear Chen Lee,

Please note that since your account is belonged to an organization, none of moderators could help you do this action. Kindly follow these steps:

Please contact your IT Admin to revoke your MFA. Manage authentication methods for Microsoft Entra multifactor authentication - Microsoft Entra ID | Microsoft Learn

In case you do not know who your IT Admin is, please refer to this article: How do I find my Microsoft 365 admin? - Microsoft Support

If they still could not do it, please ask them to raising a support. A technical support engineer can perform a remote session to investigate the situation verify the backend configurations, and run any necessary synchronization tools to resolve the problem.

The IT Admin should create a service request with Microsoft support to get advanced technical assistance and diagnostics. For detailed instructions on how to get support, please refer to Get support - Microsoft 365 admin.

I hope the information shared helps point you in the right direction.  

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