How to Obtain VAG SFD Unlock Token for Autel Launch Topdon?

Autel/Launch X431/Topdon/Thinkcar advanced diagnostic scanners will unlock VAG SFD manually.

*Autel MS909/MS919/Ultra, Launch X431 PAD V/PAD VII , Topdon Phoenix series, Thinkcar Thinktool series.

Need to purchase SFD token from 3rd party.

How to Get VAG SFD Unlock Tokens for Autel/Launch/Topdon?

In these scanners you select Manual SFD activation. It will show you the original SFD code. Copy to clipboard.

Then go to vaglogins.com.

It appears to generate one-time SFD unlock tokens for this exact scenario. They operate on a “credits” system, but you can buy 25 credits for 25€, (about $27) and 5 credits gets you an SFD challenge response for one module, whereas 15 credits gets you unlimited offline challenges for 60 minutes for a specific VIN.

They also offer an online coding generator for 10 credits.  You sign up/sign in and buy tokens.

Input VIN to activate VIN.

Paste original SFD here.

Select brand and diagnostic address.

Then request SFD.

It will take 30s to calculate the SFD code.

Copy SFD calculation to clipboard.

Then you paste the SFD calculation code to your scanners. Then press Activate Control Unit.

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Unlock VAG SFD Gateway with Topdon Phoenix Scanners

 Security Access protection system is used on the MQB2020 (MQB37W) platform used by VW Golf VIII, Audi A3 8Y, Skoda Octavia A8, Seat Leon MK4 and others. Here is the instruction of SFD unlocking on the new Volkswagen Audi group vehicles with the SFD protection. This is the process you need to follow and this is just an example.

We’re just going to unlock this gateway using Topdon Phoenix range diagnostic tool (Phoenix Smart, Phoenix Max, Phoenix Plus etc)!

Launch X431 PAD V/PAD VII and Thinkcar Thinktool series will also do manual SFD unlock, they are similar to Topdon coz the software is similar.

 

 

We will use it as an example ABS module common one for needing to unlock this SFD Gateway on these vehicles.

After scan the vehicle, enter 03 Brake Electronic module.

Select SFD(Vehicle Diagnostic Protection) Activation function at the bottom.

We’ll go Manual SFD activation.  We also need the VIN number and the module. We are in the 03 brake Electronics module.

Copy that original request code.

We go to browser, go to vaglogins.com.

It appears to generate one-time SFD unlock tokens for this exact scenario. They operate on a “credits” system, but you can buy 25 credits for 25€, (about $27) and 5 credits gets you an SFD challenge response for one module, whereas 15 credits gets you unlimited offline challenges for 60 minutes for a specific VIN.

They also offer an online coding generator for 10 credits.  You sign up/sign in and buy tokens.

We’re going to enter the VIN number to activate Vin and then we’ve got active VIN number.

Then paste the original code we had copied earlier. Select module. 03 module is we are in.

It take up to 30 seconds to generate this code so just be patient.

We are now got the calculations.  The SFD unlock request code is here.

Select All and copy, then head back to Topdon software, select SFD Token.

Then paste the SFD unlock request code.

Hit Activation Control Unit.

Topdon has now unlock the SFD gateway on this vehicle for the ABS module.

You are able to wind back the calipers and run other special functions on this car.

 

With Thinktool you can also manual unlock SFD gateway.

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Benz 38 PIN Multiplexer OBD1 Pinout

Here is the wiring scheme of the 38-pin to multiplexer cable is as follows (Car end - Multiplexer end).

On the 38-pin end, the wires have round crimp connectors that slide onto the backs of the 38 pins. On the multiplexer end, each wire is soldered to a cylindrical socket for the pins on the multiplexer.

1-A
2-B
3-C
4-D
5-E
6-F
7-G
8-H
9-J
10-K
11-L
12-M
13-N
14-P
15-R
16-S
17-T
18-U
19-V
20-W
21-X
22-Y
23-Z
24-a
25-b
26-c
27-d
28-e
29-f
30-g
31-h
32-i
33-j
34-k
35-m
36-n
37-p
38-q

Read also:

http://blog.obdii365.com/2023/02/27/choose-a-fully-pinned-38-pin-cable-for-mb-sd-c4/

How to Use L-suite to Correct Checksum?

 If your foxflash/kess3/fc200/xhorse multi prog programmer etc failed to correct checksum for ECUs, you can correct the checksum manually with L-suite software.

 

 

Let’s calculate checksums the easy way.

L-suite won’t do checksums on all ecus, but the common ones are easy to sort out with proper quick software.

 

So let’s begin, start by downloading Lsuite software from

Free Download L-Suite DLL Checksum Calculator

It’s about 11mb, unzip it anywhere you like. Desktop or wherever.

Then we install vcredist_86.exe on that zip archive.
Time to start Lsuite, first time opened it asks.

Please choose dlls folder location. It uses Kess checksum calculating DLL library files.

So lsuite opens up and theres the dll archive allready which your going to chooce in same zip root archive.
Select dll folder and press “select folder”
Now press autodetect on in left corner.
Now we are ready to rock, so whats next?
Now go to firmware box.
Bin file: here you select your mod file.

Nice, now press run and it will calculate checksums, on some cases it wants to compare your modfile to original bin. If so then just select where that ori file is.
Let tool calculate and end result identification.
It will save that now checksumed file on same location where modfile was.

Now you can write file in and if tool asks to calculate cs, just select no.

 

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Xhorse MQB Adapter vs Yanhua ACDP MQB Adapter

 Both Xhorse and Yanhua ACDP have adapters for VAG MQB cluster. Which to choose? Here is the clue.

 

1. License:

Xhorse: Need to activate MQB NEC35XX license. Multi prog has this license built-in but have to combine device with vvdi2 or key tool plus to activate the license.

ACDP: Need to activate module 33 (for MQB NEC35XX) or module 34 (for RH850/V850)
Module 33 has some NEC35XX MQB, module 34 is for RH850 clusters.

 

2. MQB Solder Free Adapters 

Both Xhorse and ACDP have a set of solder free adapters for MQB NEC35XX clusters.

ACDP solder free adapters are significantly more compact than the xhorse adapters for storage, and their smaller size makes alignment much easier. People found it difficult to find the space in your work van for all the xhorse MQB adapters. Tried on 6 different dashboards and no issues with any of them.

 

They have almost the same MQB NEC35XX coverage.

 

Xhorse MQB solder free adapters support the following processors 

XDNP74 Supports type:
D70F3524 (A2C00889000)
D70F3525 (A2C81589600)
D70F3526 (A2C81589700)

XDNP75
D70F3525 (A2C81589600)
F70F3526 (A2C81589700)

XDNP77
D70F3525 (A2C81589600)

XDNP78
D70F3525 (A2C81589600)

XDNP79
D70F3526 (A2C81589700)

XDNP80
D70F3526 (A2C81589700)

XDNP82
D70F3529

XDNP81
D70F3525 (A2C81589600)
D70F3526 (A2C81589700)

XDNP83
D70F3532 (A2C81589500)

XDNP84
D70F3532 (A2C81589500)

XDNP85
D70F3537 (A2C81589800)

XDNP86
D70F3535 (A2C81589200)
D70F3537 (A2C81589800)
D70F3536

XDNP87
D70F3524 (A2C00889000)

 

ACDP Module 33 solder free adapters support the following processors

MQB-74 interface board Supports type:

D70F3524 (A2C00889000)

D70F3525 (A2C81589600)

D70F3526 (A2C81589700)

MQB-75 interface board

D70F3525 (A2C81589600)

DF70F3526 (A2C81589700)

MQB-77 interface board

D70F3525 (A2C81589600)

MQB-78 interface board

D70F3525 (A2C81589600)

MQB-79 interface board

D70F3526 (A2C81589700)

MQB-80 interface board

D70F3526 (A2C81589700)

MQB-82 interface board

D70F3529

MQB-81 interface board

D70F3525 (A2C81589600)

D70F3526 (A2C81589700)

MQB-83 interface board

D70F3532 (A2C81589500)

MQB-84 interface board

D70F3532 (A2C81589500)

MQB-85 interface board

D70F3537 (A2C81589800)

MQB-86 interface board

D70F3535 (A2C81589200)

D70F3537 (A2C81589800)

D70F3536

MQB-87 interface board

D70F3524 (A2C00889000)

 

3. MQB RH850 Adapter

 

Xhorse: Only Xhorse multi prog and key tool plus will read and write RH850 clusters.

Suppported Processors:
D70F3426
D70F3524
D70F3525
D70F3526
D70F3529
D70F3532
D70F3537
R70F01401
R70F01402
R70F01407

You need different RH850 cables for multi prog and key tool plus. No cut wire, no lift pin, but need to remove the capacitors.

RH850 adapter for multi prog

RH850 adapter for key tool plus

 

Yanhua ACDP:

 

Yanhua ACDP released new module 34 for MQB RH850 IMMO and mileage. The module 34 is compatible with both ACDP-1 and ACDP-2 Master.

Function:

1： Support IMMO and mileage correction for the 4th generation instrument with D70F3423 +95320 chip model.
2： Supports IMMO and mileage correction for D70F3426 +95128 chip model MQB 5A instrument.
3： Supports IMMO and mileage correction for RH850 series R7F701401, R7F701402, R7F701407 chip model 5A instruments.
4： Support mileage correction for RH850 series R7F701401, R7F701402, R7F701404, R7F701406, R7F701407 chip model 5C instruments.

Chip List:

D70F3423
D70F3426
R7F714011
R7F71402
R7F71404
R7F71406
R7F71407

 

With ACDP module 34, No lift pin, no wiring, no soldering or remove components. 5A both immo & mileage, 5C for mileage only.

4. Sync data

Both Xhorse and ACDP require sync data from 3rd party if lost all keys.

5. Price:

Xhorse: License $200+ MQB solder free adapter $249 + RH850 adapter around $40

ACDP: module 33+ module 34 $630. You will get everything.

In sum:

They have similar coverage. The biggest difference will be the RH850 adapter. With Xhorse RH850 adapter you will need to remove components, ACDP does not.

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How to Repair Audi Mild Hybrid 48V Lithium Battery

 When an Audi experiences a significant accident or the voltage of its Mild Hybrid 48V lithium battery drops too low, the battery enters a protective mode and becomes unchargeable. As a result, the vehicle fails to initiate, and replacing the battery becomes a costly endeavor. You may need spend $4,000 for 48v battery replacement.

Common error codes: P0A7D00, P0A8000, P0B2900

Module: Battery lithium module

Models: Audi A7, A8, Q7, Q8 and other MHEV models after 2018

Part number: 4N0 915105B

MCU: SPC5644BMLU8(0N32E)

Here is a solution to unlock a 48v battery after discharge.

 

Audi 48V battery repair solution:
1: Remove the battery shell and find the corresponding MCU. We remove the circuit board and find mcu chip 5644B.
2: Use programmers to write virgin data into MCU.
3: Use special charger to charge the battery to 48V.
4: Install the battery shell, use the Audi 48V test platform to test whether there is 48V voltage output
5: Load the battery, use ODIS to activate the battery, the vehicle can start normally. In ODIS diagnosis go to guided functions and close the charging contractor. hook up a 100 amp charge to the 12v battery, so it can charge the 48v battery. 48v battery has to be above 5% charge level. Below that you need to replace the battery. You could charge it, but you will need special tools.

 

You can read this mcu data from original battery module, modify the data, then write the virgin data back to the battery module.

CG100X, Xhorse Multi Prog will read and write Audi 48V battery module. But they cannot virgin data or repair module directly.

SMOK can do everything by its own, but have to pay for a license.

 

In CG100X software, go to Programmer->Motorola->MPC56XX->MPC5644B, check wiring diagram.

In Xhorse Multi prog software, select Audi A8-48V lithium battery (MPC5644B) option and check wiring diagram.

Read also:

Repair Porsche Cayenne 12V Lithium Battery by CG100, ACDP, X431, Xtool or VVDI?

How to Repair Mercedes Benz 48V Mild Hybrid Battery with CG100?

Yanhua ACDP BMW BDC Error Not Support IMMO Solution

 Here comes the problem:

It is a BMW X5 F15 MY2017. One of our customers tried to add a spare key with Yanhua Mini ACDP2 and module 31 via OBD.

But ACDP failed to add key via OBD thru DoIP method. It said IMMO is not supported.

Possible reason:

This BDC version can not be done via OBD directly.

You need to restore coding and recode module to add key via OBD.

1. Restore FEM/BDC with ACDP. Write coding data.

2. Recode BDC module with E-sys/Launch X431/Autel scanners.

 

How to Install Yanhua ACDP 2023 2024 Volvo CEM Adapter?

Yanhua Mini ACDP released new interface board for Volvo 2023-2024 CEM key programming on bench.

Supported Volvo Models:
2023-2024 Volvo S60/S90/XC60 and Lynk & Co

CEM chip: SPC5748G, SPC5748C

 

Features:
1. Read Volvo CEM, no need to dismantle any chip or Components, no soldering, no damage

2. A special interface board replaces welding, pins are intelligently detected and data reading and writing are safe and reliable.

 

For 2023.07-2024 Volvo, need license A303.
If you already activate license A303, just need to buy these interface boards.

MY2022 and pre-2023.06 Volvo use these interface boards with Module 20.

 Here we show how to install Yanhua Mini ACDP 2023-2024 Volvo CEM interface boards.

 

1. Install 2023/2024 Volvo SPC5748G CEM Interface Board

This interface board supports 2023 and 2024 Volvo S60 S90 XC60 etc. It is specifically designed for the SPC5748G chip model CEM.

1. Push the lock fastening of the interface board to the unlock position
Find the interface board installation area on the CEM according to the visual positioning mark on the interface board.

Align the interface board with the CEM socket.
Align with the two positioning holes.

Press the interface board downward with your fingers.

Push the PCB lock buckle to the Locked position to lock the interface board.

Finish installation.

 

 

2. Install 2023/2024 Volvo SPC5748C CEM Interface Board

This Interface board supports 2023 and 2024 Lynk & Co 01, 03, 09 etc models. It is specially designed for the SPC5748C chip model CEM.

1. Push the lock fastening of the interface board to the unlock position.
Find the interface board installation area on the CEM according to the visual positioning mark on the interface board.

Align the interface board with the CEM socket.
Align with the two positioning holes.

Press the interface board downward with your fingers.

Push the PCB lock buckle to the Locked position to lock the interface board.

Finish installation.