Important Security Update for Unlocking VAG SFD security gateway ofLaunch X431 diagnostic scanners.

The Volkswagen Group (VAG) has introduced updated security protocols for unlocking protected functions via SFD (Vehicle Diagnostic Protection).
To comply with these standards and prevent any service interruptions on Volkswagen, Audi, Skoda, or Seat vehicles etc.,Multifactor Authentication (2FA) via Google Authenticatorisnow MANDATORY.

Start Date:
May 25, 2026

Affected Systems and Software:
Every diagnostic device used to activate or unlock VAG SFD gateway.

The New Requirement

• Multifactor Authentication (2FA) is now MANDATORY as part of the unlocking process and has been added via Google Authenticator.
• Specifically, a temporary 6-digit verification code must be entered for each SFD unlocking. Access to the ECU is only granted after successful verification.
• Users who have not yet linked a device will be required to complete a one-time setup during the unlocking process.

Step-by-Step Guide:

1.Start the SFD-Unlock Procedure
2.[Initial setup only] Scan the QR shown using the Google Authenticator app.
3. The Google Authenticator app shows a generated 6-digit verification code. The code is temporary.
4. Enter the verification code into the device used for SFD-activation.

Posted by: jean at 07:57 AM | No Comments | Add Comment
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