I cannot Sign in to my Microsoft account because I changed my mobile number and not get the code.

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I cannot Sign in to my Microsoft account because I changed my mobile number and not get the code.

Mario Lampo 0

I cannot sign in to my Microsoft account because I changed my mobile number and did not get the code.

I can open only my Microsoft account. by university, but my personal Microsoft account doesn't work for this reason and can show the code. How can I get the code for my current mobile number, or is there another way?

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Answer 1

To use the current mobile number or another method and regain access to the personal Microsoft account, follow the path that matches the situation.

If at least one old security method (phone/email/app) still works

Go to the Advanced security options page of the Microsoft account and sign in using any method that still works (for example, an old email or the Microsoft Authenticator app).
Select Add a new way to sign in or verify and add the new mobile number (SMS or call) or another email.
Enter the code sent to the new number/email to confirm.
After that, expand the old phone number entry and select Remove, then confirm.
Do not remove all security info at once; otherwise, the account can be restricted for 30 days.

If the password is known but there is no access to any old security info (all phone numbers/emails lost)

Start signing in to the personal Microsoft account as usual.
When the Verify your identity screen appears, select I don't have any of these.
Follow the prompts to replace the security info with the new mobile number or email.
After completing this process, there is a 30‑day waiting period before sign‑in with the new security info is allowed. During these 30 days, if the old security info is recovered, it can still be used to sign in, but doing so cancels the update.

If the password is forgotten and there is no access to any security info

First try to regain access to any old phone or email if possible; this is the fastest option.
If that is not possible, read the guidance in Help with the Microsoft account recovery form, then submit the recovery request using the Recover account form. Provide as much accurate information as possible about the account.

If verification codes are not arriving on the new number

Avoid requesting codes repeatedly; too many requests can cause a temporary block where codes are not sent.
Make sure the number is a mobile number, not VOIP.
Check that SMS from unknown numbers are not blocked and that the SMS inbox is not full.
If using email as a method, check the junk folder for messages from @accountprotection.microsoft.com and mark that sender as trusted.
If there is heavy or suspicious traffic from the region, delivery may be delayed; this usually resolves automatically after some time.

If none of the above works

Use the Sign‑in helper tool for Microsoft accounts to diagnose the sign‑in problem and follow the steps it provides.
If still unable to sign in, go to Contact Microsoft Support, choose the problem type (for example, account sign‑in or recovery), and then select Get Help and, if needed, Contact Support. A different account (such as the university account) can be used to sign in to Support, but support agents cannot send verification codes or directly change security info; they can only guide through the recovery process.

Note: University (work/school) accounts and personal Microsoft accounts are separate. Being able to sign in with a university account does not allow bypassing security verification on the personal account; the personal account must be recovered using its own security and recovery options.

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