Backup Codes
Use backup codes when you can't access your authenticator app.
What are backup codes?
Backup codes are one-time use codes that let you log in when you can't access your authenticator app (e.g. lost phone).
Using a backup code
On the 2FA verification screen during login, click Use a backup code and enter one of your saved codes.
Each backup code can only be used once. After using a code, it's permanently consumed.
Regenerating codes
If you've used several codes or lost your saved codes, generate new ones from Settings → Security → Regenerate Backup Codes. This invalidates all previous codes.
Regenerate backup codes option in settings