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Now offering both SFD (instant) and SFD2 (manual) unlock tokens
sfdcode
SFD & SFD2 Unlock Service

Unlock any VAG control unit — SFD in 30 seconds, SFD2 within 24 hours.

Paste your offline challenge, pay, get the unlock token. SFD for €15 — generate instantly and use right away. SFD2 for €175 with operator-assisted delivery.

SFD€15·30–60 sSFD2€175·≤ 24 h

Stripe-secured payments · No account required · Refundable until token is delivered

Live preview
POST /unlock
Protocol
SFD · instant
Module
17 — Instrument Cluster
Offline token
A1F4 9CB2 DD30 …
Brand detected
Audi A4 (B9) · 2022
Price
€15.00
Unlock tokenVerified
8C42 1E9B 7AD0 22F1 65E8 4A33 …

Example QR code

Demonstration QR linking to the unlock checkout (illustrative only)

Illustrative only — encodes the public unlock URL.

Coverage across VAG and Porsche

Pick the right token

SFD or SFD2 — choose the protocol your vehicle is locked behind.

Both products end at the same place: a valid unlock token delivered to your inbox. Pricing and SLA differ because SFD2 is brokered manually.

Instant

SFD — instant unlock

€15

per token

Create your unlock token in seconds after payment — show it on screen, use it in your tool immediately. Ideal for daily workshop work on MQB and older MQB Evo.

Delivery
Delivered in 30–60 seconds
Method
Instant generation — ready to use immediately
Coverage
All VAG modules (01–FF)
Refunds
Non-refundable once token is generated

Does not cover SFD2

SFD tokens never unlock SFD2-protected modules. If your scan tool reports SFD generation 2, you need an SFD2 unlock token — not this product.

Go to SFD2 product
Manual

SFD2 — manual unlock

€175

per token

We source a valid token from our supplier network and email it to you within 24 hours.

Delivery
Delivered within 1–24 hours (manual)
Method
Manual operator pipeline
Coverage
All VAG modules (01–FF)
Refunds
Refundable until token is delivered

Important

SFD2 is delivered manually. The 1–24 h window (included in the price) reflects our operator sourcing your token. You'll receive it by email when it's ready.

How to use

Three steps from challenge to unlock

Guest checkout flow — pick SFD or SFD2 above, then follow the checklist. SFD returns in seconds; SFD2 is emailed when our team finishes sourcing it.

  1. Paste your offline challenge

    Enter the ECU hex address from your diagnostic tool and paste the full offline challenge block (often labelled SFD or SecurityAccess).

  2. Finish email & checkout details

    Add the delivery inbox, confirm the unlock type, accept the terms — then complete payment with Stripe (card, Apple Pay or Google Pay).

  3. Get your SFD unlock code

    SFD generates immediately on screen plus TXT, QR and email delivery. SFD2 follows the same form but arrives by email once the operator token lands (within 24 h).

Open checkout form

Two ways to use sfdcode

Pick the workflow that fits your day. Both deliver the same cryptographically valid unlock tokens.

Guest, one-shot

Need one token, right now?

No account needed. Enter your ECU challenge, add email on step two, pay — unlock lands in your inbox.

  • 3-step interactive form
  • Email + TXT + QR delivery
  • Stripe checkout — card, Apple Pay, Google Pay
Pro & workshops

Volume? Use the panel.

Buy prepaid SFD or SFD2 packs (up to 33% cheaper), use the web panel, or download the Windows desktop app to auto-unlock straight from the vehicle via J2534 / D-PDU.

  • Prepaid credit packages
  • Web panel + Tauri desktop app
  • Auto unlock via VCDS, VAS5054, VNCI 6154A
How it works

From input to unlock in three steps

  1. 1

    Enter data

    Type the module number (e.g. 17) and paste the SFD offline challenge from your diagnostic tool.

  2. 2

    Confirm & pay

    Review your inputs, pay €15 securely with Stripe. Card, Apple Pay or Google Pay.

  3. 3

    Receive your token

    Within 60 seconds you get the unlock token — on-screen, as TXT, as QR, and via email.

Frequently asked

Quick answers about SFD, SFD2 and delivery

What is SFD?
SFD (Schutz vor Fremd-Diagnose, generation 1) is the original VAG security scheme that prevents third-party diagnostic tools from changing protected coding without authorization. sfdcode generates valid SFD unlock tokens in 30–60 seconds for €15.
What is SFD2 and why is it more expensive?
SFD2 is the second-generation scheme on newer VAG vehicles. sfdcode sources a valid unlock token from our supplier network and emails it to you within 24 hours. The €175 price covers the manual operator work and supplier cost.
Do I need to create an account?
No. Both SFD and SFD2 unlock tokens can be purchased as a guest. Just provide an email address for delivery.
Which brands and modules are supported?
All current VAG brands (Volkswagen, Audi, Škoda, SEAT, MAN, Bentley) and any UDS module address (01–FF). Common modules include engine (01), transmission (02), ABS (03), cluster (17) and gateway (19).
How is the unlock token delivered?
For SFD: on-screen, as a TXT file, as a QR code, and by email — all within 60 seconds of payment. For SFD2: by email within 24 hours once our operators source it.
How long is an unlock token valid?
Each token matches one specific offline challenge from your ECU. Under typical VAG diagnostic workflows, the challenge/response pair is commonly usable for about 90 minutes from when the challenge was generated — always follow your scan tool if it shows a countdown or expiry. If the control unit reboots, you start a new SecurityAccess flow, or the challenge changes, generate a new challenge and request a new token. The same pairing rules apply to SFD2 once the token email arrives.