unable to use Authenticator on new phone

Minqiao Huang 1 Reputation point

I can't scan the QR code to set up the Authenticator on the new phone, it says I already used that code to set up once, but I don't know where I can find a new code, and manually code doesn't work either. And if choose sign up with account, I'll need the approval from authenticator, it doesn't makes sense since I can't even set up the app, how can I receive the approval notification.

Microsoft Authenticator
Microsoft Authenticator
A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation.
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