This is one of the most stressful scenarios. You've enabled 2FA, but you've lost your phone, reset it, or no longer have access to your authenticator app.
A tool within the Facebook mobile app settings that generates a new code every few seconds, even without an internet connection. facebook six digit code
You can update how you receive codes to prevent future issues. Go to > Settings . Click on Security and Login . This is one of the most stressful scenarios