VVDI Key Tool Plus Unlock BMW CAS4 and Read ISN via OBD

 In this guide, we’ll walk through the process of performing an add key procedure on a 2015 BMW X3 using the Xhorse VVDI Key Tool Plus. This includes unlocking the CAS4+ module, reading the ISN number, and programming a new dealer key. Proper voltage maintenance and attention to detail are critical for success.

Tools and Preparation

• Xhorse VVDI Key Tool Plus (KTP)

• Battery maintainer (recommended voltage: 13V or higher)

• Original key

• New blank key

• Working internet connection (for data transfer)

Important Note: Ensure the vehicle battery voltage remains above 13V during the entire process. Operating at 12V or lower risks failure or module damage.

Step-by-Step Procedure

1. Read Vehicle Information

• Connect the Key tool plus to the OBD port.

• Turn on the ignition and scan the vehicle to retrieve the VIN and confirm the CAS4+ system.

• Verify the displayed information before proceeding.

2. Unlock the CAS4+ Module

• Save the module data file before starting the unlock process.

• Follow the tool prompts to transfer and receive data. This step may take time; avoid interrupting the process.

Tip:

• For stability, perform this step on a bench if possible. If using OBD, ensure a stable power supply and internet connection.

3. Read the ISN Number

• Insert the original working key (if available) into the key reader coil.

• Select the option to read the ISN from the key. The tool will display the ISN number.

• Record the ISN for future reference.

Alternative:
If no working key is available, the ISN can also be read from the engine control module (ECM).

4. Prepare and Program the New Dealer Key

• Navigate to the “Prepare Dealer Key” option in the tool.

• Select the key position (e.g., key number 5 if slots 1 and 2 are already taken).

• Choose the appropriate option (with working key or ISN, depending on availability).

• Place the new key near the coil and follow the prompts to program it.

Key Learning:

• Hold the new key close to the coil during programming.

• Confirm the “Learn Successful” message before testing.

5. Test the New Key

• Remove all other keys from the vehicle to avoid interference.

• For the first start, hold the new key near the ignition coil and start the engine.

• Verify that the engine starts and the remote functions (lock/unlock) work properly.

Important Tips

1. Voltage Stability: Always use a battery maintainer to keep voltage above 13V. Low voltage can cause failures.

2. Data Transfer: A strong internet connection ensures smooth communication with the server during CAS unlocking.

3. Key Positioning: Proper placement of the key on the coil is critical for successful programming.

4. Backup Data: Save all module data files before making changes for recovery purposes.

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Xhorse Gen2 vs Gen1 Audi BCM2 Adapter

 New Gen2 Xhorse XDNPABGL Audi BCM2 Encrypted Solder Free Adapter is available on vvdishop.com. What’s the difference between Gen1 and Gen2 Audi BCM2 adapter?

Check the comparison below:

Item	Xhorse Gen1 Audi BCM2 Adapter	Xhorse Gen2 Audi BCM2 Adapter
Car List	2013-2019 A4L,  A5, Q5 2013-2019 A6L,  A7, A8	2013-2019 A4L,  A5, Q5 2013-2019 A6L,  A7, A8, Lamborghini, VW Touareg and more
BCM2 Versions	0510, 0521, 0551, 0572, 0582, 0633, 0461, 0650, 0711, 0824, 0825, 0827	all BCM2 versions (03XX/ 04XX/ 05XX/ 06XX/ 07XX/ 08XX)
Compatible devices	VVDI Key Tool Plus , Multi Prog and VVDI2 + VVDI Prog	VVDI Key Tool Plus, Multi Prog
Full data	–	Yes, full Dflash + Pflash. Supports BCM2 cloning (with the same hardware version)
Get BCM2 Immo data without original key ID	Yes	Yes
Compatible with 754J key	Yes	Yes
Package List	1 x XDN62 BCM2 Adapter 1 x XDN63 BCM-1 Adapter 1 x XDN64 BCM-2 Adapter 1 x XDN65 BCM-A1 Cable 1 x XDN66 BCM-A2 Cable 1 x XDN67 BCM2-PROG Cable	1pc x BCM2-A Solder-free Adapter 1pc x BCM2-B Solder-free Adapter 1pc x Adapter Cable for VVDI Key Tool Plus 1pc x Adapter Cable for MULTI-PROG

In sum:

The Gen2 adapter works with vvdi key tool plus and multi prog only.

The Gen2 Audi BCM2 adapter is the updated version of Gen1. It is an improved version that supports reading all BCM2 versions, regardless of hardware version. It also supports cloning BCM2s with the same hardware version. It can read full Dflash and Pflash data. Gen1 adapter cannot do BCM2 cloning.

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Tips to Program Kia Hyundai 8A Smart Key with Xhorse Remote

 Here comes the user working experience on programming the Xhorse universal smart key on the Hyundai/Kia 8A chip type smart key system:

For example, it’s a 2023 Kia Picanto.

Some users had issue programming A LOT of xhorse Kia/Hyundai remotes. Removing the battery made a difference because I’ve never removed the battery before until yesterday when I checked feedback and saw a suggestion about it.

Take the battery out of the remote before putting it on the start button.

Removing battery when programming. It works 100%

Xhorse VVDI2 Failed to Read XSCH01EN Transponder?

 Problem:

It’s an XHORSE XSCH01EN Chrysler style XM38 smart remote. VVDI2 won’t record the id63 for Ford, is it a problem with the key or something else, when I record the id63 the key is 46 after recording and won’t change to id63 d4. I also have a mini key tool, but I can’t do the same with 4d.

Solution:

You cannot generate a transponder using the Xhorse smart remote.

Go to Prepare Remote/Proximity function to generate the remote then program remote.

Xhorse Condor Motor Test Error 55 Solution

 Here comes the solution to Xhorse Condor XC-Mini Plus or Condor II movement abnormal and error code 55 problem.

Phenomenon: There is an abnormal noise when the X/Y/Z axis self checks and moves after Condor machine is turned on, Or there is abnormal noise when one of the X/Y/Z axis moves during the process of decoding or cutting keys;

Solution: Go to device self test – motor measurement- perform X/Y/Z motor testing separately (Refer to the following picture for the entry method)

Normal situation: ‘OK’ will be displayed at the bottom of the test interface, as shown in the picture;

Fault situation: A certain axis at the bottom of the interface will display ‘Bad’, indicating that there is a fault with this axis and the corresponding sensor needs to be replaced,

As indicated by the arrow on the right, it represents that there is a fault in the current Y-axis and the Y-axis sensor needs to be replaced;

Check

picture 1 shows the positions of Z-axis and Y-axis sensors;

picture 2 shows the appearance of the old sensor;

picture 3 shows the appearance of the new sensor.

If it is a fault with the X-axis sensor, please contact technical support as the steps for replacing the X-axis sensor are quite complicated.