Xhorse VVDI Key Tool Plus SFD Manual Unlock Tutorial for VAG

Great news: The latest Xhorse VVDI Key Tool Plus database now supports manual unlocking of VAG/Audi SFD security gateways.


This guide outlines the step-by-step process for unlocking SFD-protected control units, enabling vehicle diagnostics and key programming.


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Applicable Devices:

VVDI Key Tool Plus

VVDI Key Tool MIDI


Before You Begin:

Ensure your device database is updated to the latest version.


Note: Automatic SFD unlocking is not supported - you must obtain the calculation code manually from a third-party service.


3-Step Unlock Process:

Step 1: Get Vehicle Seed

① Select "Unlock SFD" on your VVDI device

② Scan the displayed QR code to access vehicle data

③ Obtain the SFD seed code through OBD connection


Step 2: Calculate Unlock Code

① Send the seed code to a third-party calculation service

② Receive the corresponding response code


Step 3: Complete Unlock

① Enter the response code into your VVDI device

② Confirm "Unlock Success" notification

③ Gateway remains unlocked for 90 minutes for key programming and diagnostics


Important Notes:

① SFD1 only - Does not support SFD2

② The entire process requires manual code calculation

③ Ensure stable vehicle connection during operation

④ Use the unlock window for dealer key generation and key learning


After Unlock:

Proceed with key programming functions within the 90-minute access period.


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www.xhorsetool.co.uk


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