Resolve GitHub Authenticator Code Failure

I’m locked out of my GitHub account because Microsoft Authenticator simply won’t generate any verification codes. I’ve already opened the app, confirmed notification permissions, and double-checked every setting I can find, but the one-time codes never appear. After changing phones and reinstalling the app, the problem spread—now no service linked to Authenticator gives me a code at all.

Here’s what I need from you: a clear, safe path back into GitHub with two-factor protection intact. That likely means troubleshooting Microsoft Authenticator itself, confirming the TOTP secret or push-notification flow, and—if necessary—helping me transfer or re-enroll the GitHub token without risking account loss. Written steps I can keep for future reference are essential; I’d also appreciate a quick screenshare or terminal session if that speeds things up.

Success for me is simple: I log in to GitHub and see fresh, working codes inside Microsoft Authenticator (or an alternative app you recommend) for every account I currently protect. If you’ve solved similar 2FA lockouts before, let’s get started right away.