If your Control Center user profile is set up to use an authentication app for two-factor authentication (2FA), you'll need to set up the app the first time you sign in to Control Center or after re-enrolling 2FA (e.g., when you change mobile devices).
To set up two-factor authentication:
The authenticator app generates a one‑time, six‑digit code every 30 seconds.
You can now sign in to Control Center.
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