When using the OneKey Card, use the Google Authentication Code App to scan your 2FA QR Code. After a successful scan, you will see your Google Authentication App display a 6-digit verification code, which refreshes every 30 seconds over time. This 6-digit verification code can be used for sensitive operations, such as viewing CVV, changing 2FA code.

Keep your two-factor authentication (2FA) backup code, if you lose your phone in the future, you can still use the "two-factor authentication (2FA) backup code" to input into the "Google Authentication Code App".