How to Solve VVDI2 BMW BDC2 Coding Unknown Version Error

 Problem:

Want to add a new key to BMW G31 BDC2 system with xhorse vvdi2 and BMW BDC2 adapter. but I can’t get past reading the code.
VVDI2 gave an error coding unknown version.

Solution:

Coding file is corrupt. Put it into the car and add coding file with your tool.

The car has a software version from 2021, but the coding data is missing, you can do your work normally, it has to be imported cafd manuel later, but that only works with a coding program, car missin cafd from S15A-21-11-560.

 

User report:

The problem has been solved and VVDI2 handled it very well. The problem was that the client arrived with corrupted CAFD data. Didn’t notice it at first. I put the BDC back in the car and fixed it via obd2 using the X-Diag program and Launch adapter. Then I went back to the previous steps and everything went smoothly.

I changed the BDC coding via OBD and the vvdi2 program accepted the new coding allowing me to program the new key.

VVDI2 VW Polo R7F701401 Decode 5000 Error Solution

 Problem:

It’s a 2018 VW Polo MQB48 model with processor R7F701401.
I have the PCJ7991WT chip on the PCB, which finally confirms that it is the mqb49 5c.

Xhorse VVDI2 cannot decode data (read by multi prog) or change the mileage.

Solution:

It’s MQB49 cluster. Requires new MQB49 5C adapter set.
Only use the new MQB49 adapter, vvdi2 will decode data to change 5C/5D cluster mileage.

Use new MQB49 adapter and use this option to read cluster, than decode data with vvdi2.

Xhorse XM38 Toyota RAV4 No Proximity Function Solution

 Problem:

Tried to generate 2011 Toyota RAV4 AKL proximity with Xhorse key tool max pro using XM38 Toyota smart key. Tried every option available for the 11 model and with some option I get no beeps and with some I get a single beep when adding new proximity after smartbox reset. Any solution?

If you have one beep it means that the transponder sets correctly but the proximity part of the key isn’t, you need your change frequencies in order to find the working one.

Possible solutions:

Solution 1:

RAV4 & Highlander generally share the same keys around that era.
In special functions/vvdi remote settings/toyota scan your XM38 & check the signal strength (0 is the strongest – 7 is weakest)
We’ve had cars with the right profile not detect because the signal strength was a 4, changed to 1 and went straight in with 2 beeps.

 

 

Solution 2:

Take out battery of xm38 after correct remote generation.
For some weird reason the double beeps on successful add, only happen with no battery in remote.
It’s counter intuitive as you usually just leave battery in to generate. Try it next time, it’ll work perfect. Have to do this on prox Toyotas only.

Program 2008 Peugoet Boxer ID48 Key using VVDI Wire Remote

 Here is a tip on how to program the Peugeot Boxer 2008 key (Id48 with MM EEPROM 95160) using the Xhorse remote.

Peugeot Boxer 2008 add key as Fiat Ducato, tested all conection on Peugeot and Citroen did not connect but connected on Fiat Magnetti Marelli eeprom 95160. Make dealer key, add Keys, then remote. Job took a little longer than expected.
Used a Vvdi remote XK Red wired. For XK Red remote was my first time, tried to connect with the wire but after i installed the battery the key was programmed via wireless connection.

You can also clone remote and transponder both work on these.

Xhorse VVDI Prog Pinout to Delphi MT62.1 ECU

 Both Xhorse VVDI Prog and Multi Prog will read and write Delphi MT62.1 ECU for Changan, BAIC, Dongfeng car brands.

Here is the wiring diagram to this ECU.

The key point to note is that the yellow RESET wire must not be connected to the position marked on the board. The specific correct position has been indicated in the diagram.

Otherwise may fail to read this ECU with vvdi prog.

Xhorse Multi Prog Read Magneti Marreli G6.14 ECU

 Xhorse Multi Prog user report today:

Mcu mc68hc11a1
From magneti marreli G6.14.

The Magneti Marelli G6.14 is an Engine Control Unit (ECU) for older Peugeot and Citroën vehicles, typically found in 1.4L KDX (TU3MC) engine models, used for managing fuel injection and ignition, often with part numbers like 9618087780 (G6.14 0D01) or 9623757180 (G6.14 0D02).

Read/Write with multiprog successfully.

Autel xp400 with apb adapter failed to read it.
Just be carefull with soldering but no so hard !

Xhorse Super Chip XT57B vs XT27A vs. XT27B

 Selecting the correct transponder chip is essential for successful key programming using tools such as the VVDI Mini Key Tool, Key Tool Max Pro, or VVDI2. Xhorse’s XT27A, XT27B, and XT57B represent the most popular “Super Chips” for generating 4A/4C/4D/46/47/48 and newer 8A transponders. This guide clarifies their distinctions to support your purchasing decision.

XT27A vs XT27B vs XT57B Guide

Feature	XT27A	XT27B	XT57B
Image
Positioning	Foundational multi-protocol chip	Stability-enhanced chip	Advanced reusable chip
Key Protocols	PCF7930-7939, ID46, ID48, 4C, 8A, 8H	All XT27A protocols + ID49, 4A	All XT27B protocols + ID4A, ID5C, MQB ID48
Main Improvements	–	1. Improved stability &consistency 2. Optimized PCF7935 performance 3. Added VW 4A/49 support	1. Latest ID5C support 2. MQB platform compatible 3. Rewritable & reusable
Best For	Users focusing on legacy & common vehicle models	Most professional locksmiths (seeking balance of cost & proven performance)	Advanced users & shops dealing with newer/high-end vehicles
Cost Efficiency	Cost-effective for supported protocols	Excellent (optimal balance of features and reliability)	Higher initial cost, but reusable for long-term efficiency

XT27A: The Foundational Multi-Protocol Chip

The XT27A established the series, providing broad support for common protocols including PCF7930-7939, ID46, ID48, 4C, and 8A/8H for Toyota and Hyundai models. It serves as a capable and economical solution for many standard cloning and programming tasks.

 

Typical Use Case: A practical choice for users whose work primarily involves older or commonly encountered vehicle models, where its protocol coverage meets most requirements.

 

XT27B: The Reliable Daily Performer

The XT27B builds upon the XT27A’s foundation with enhanced stability and added protocol support, including ID49 and 4A (important for Volkswagen applications). Its optimized handling of chips like the PCF7935 improves success rates in cloning operations.

 

Pros: Demonstrated reliability, expanded Volkswagen support, consistent performance across a wide vehicle range

 

 

Ideal User: Professional locksmiths and technicians seeking a dependable, well-rounded chip for the majority of everyday jobs

 

XT57B: The Advanced Future-Proof Solution

The XT57B represents the premium offering, introducing support for newer protocols such as ID4A and ID5C, along with specific MQB-platform ID48 compatibility. Its defining feature is rewritability, allowing the chip to be erased and reused multiple times within defined limits.

 

Pros: Support for the latest protocols, MQB platform compatibility, reusability for reduced long-term consumable cost

 

Ideal User: Busy professional shops frequently servicing newer European vehicles (particularly VW MQB platforms), or users prioritizing maximum flexibility and forward compatibility

 

Practical Recommendations

• For Standard and Legacy Vehicle Work: The XT27A provides a cost-effective solution with solid protocol coverage for many models.

 

• For Professional Daily Use: The XT27B is recommended for its proven reliability and broader protocol support, representing an excellent balance for most workshops.

 

• For Advanced and High-Volume Applications: The XT57B offers the latest protocol support and reusability, making it a strategic long-term investment for shops focused on newer vehicle technologies.

 

Conclusion

Choosing among Xhorse Super Chips depends on your typical vehicle profile and operational needs. The XT27B delivers reliable, broad-spectrum performance suitable for most professional scenarios. The XT57B is the strategic choice for future-proofing and handling the latest vehicle systems, while the XT27A remains a viable option for specific, cost-sensitive applications involving legacy models.

 

www.vvdishop.com

How to Solve Peugeot 2008 Xhorse PSA Smart Key Not Working?

 Problem:

Generated Xhorse PSA style smart key for Peugeot 2008 MY2021 with vvdi key tool max pro. After programming, everything works but xhorse smart key will not work.

smart searched the key and generated peogeot 2008 And also tried PS7.

Only starts when upto the Antenna. Any solution?

Solution:

You generated the wrong key.

There are 3 options. Try other keys.

If 29AxM use v2, genarate smart V2 key.

NOTE:

Keyless entry and keyless start only are a different key completely, 2 different PCB on OEM key one has keyless entry chip and one hasn’t.

Xhorse Key Tool Max Pro Clone Volvo ID48 Transponder

 Will Xhorse VVDI Key Tool Max Pro clone Volvo ID48 Transponder?

Here is the clue:

Make sure you have the ID48 cloning function activation. You have to buy and generate 10 remotes to activate ID48 license.

You can clone aftermarket ID48 Volvo chip but you can’t clone and write to original volvo key.

Id48 is just like cloning a VW it should work no problem.

Requires 100 points or 1 token for ID48 cloning.

 

Even if you had the id48 clone activated you cannot write to the original id48 chip in the Volvo key. You need to program it with VIDA. Costs $217 in subscriptions to program that key assuming they have the box the key came in with the remote code.

Even if you copy id48, remote is a no go unless reading data from cem and mirror or original with code and coding with vida online.

www.vvdishop.com