Dear Deepak Kumar,
Good day. Thank you for reaching out. I'm sorry to hear that you're experiencing issues, and we sincerely regret any discomfort these circumstances may have caused.
Based on what you've shared, I understand you're currently unable to receive the two-factor authentication (2FA) code from the Microsoft Authenticator app after losing your phone. I'm here to help you through this let's work together to find a solution.
- Are you experiencing difficulties with the Authenticator app, such as being unable to access your account due to lost access to the Microsoft Authenticator app?
- May I please confirm if you are using Microsoft 365 business account (such as ******@companydomain.com), Microsoft Personal account (such as Outlook.com, live.com or hotmail.com)?
- Additionally, are you receiving any specific error messages or prompts when attempting to log in?
Please take a screenshot of the issue you're experiencing so I can better assist you.
Thank you for your precious time and kind understanding. I am looking forward to your respond.
Greetings,
Jade - MSFT | Microsoft Community Support Specialist