I have a Microsoft account with Developer E5 activated. Due to my phone being lost, I cannot enter the mobile device code, resulting in an inability to log in. How can this be resolved?

Li, Runzhun/李 润谆 20 Reputation points
2025-12-01T02:15:01.7766667+00:00

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Microsoft 365 and Office | Subscription, account, billing | For education | Other
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  1. Teddie-D 8,800 Reputation points Microsoft External Staff Moderator
    2025-12-01T03:17:26.8033333+00:00

    Hi @Li, Runzhun/李 润谆 

    Thank you for posting your question in the Microsoft Q&A forum. 

    I’m sorry to hear that you’re unable to access your Developer E5 account due to losing your phone.  

    To resolve this issue, you need to reach out directly to the Microsoft 365 Business Support team. You can find the phone number for your country here: Customer service phone numbers - Microsoft Support.  

    When a call is made to support, the first step is to provide an automated voice response from AI. Be careful, you won't be able to speak to a support representative if you don't respond appropriately here.  

    Here's an example of a response that actually led to a support representative. Please refer to it. 
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    Please keep in mind that the Data Protection team often handles a high volume of requests, so it may take anywhere from 3–10 business days to receive a reply. 

    If you’re unable to reach support by phone, another option is to create a trial tenant using the Free Trial - Microsoft 365 Business Standard. From there, you can raise a support ticket on behalf of your locked account. 

    Note: After your one-month free trial ends, your subscription will automatically convert into a 12-month paid subscription and you will be charged the applicable subscription fee. Cancel anytime during your free trial to stop future charges. Credit card required to sign up. 

    I hope this helps. 


    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".   

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