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Keydiy KD-X4 release new feature for Hyundai Kia, no need pre-generate remote, auto generate and program key

KEYDIY is preparing to release a powerful new update for the Keydiy KD-X4 Key Programmer, bringing support for copying/cloning 2018+ Jaguar Land Rover (JLR) smart keys. This new function simplifies key duplication without requiring complicated vehicle programming procedures.

Key Advantages

The upcoming JLR smart key copy function offers several important benefits:

No need to disassemble the KVM module.

No need to replace or program the RFA module.

No online programming required.

No code tracking issues.

Faster and more convenient smart key duplication.

Supported Models

The new function supports:

2018+ Jaguar & Land Rover

NXP NCF29Ax smart key models

Compatible Keys

The KD-X4 can copy data to:

Original JLR smart keys

KEYDIY KD ZB24-5 Smart Key

How to Copy a 2018+ JLR Smart Key with KD-X4?

Disassemble the original Jaguar Land Rover smart key.

Coming Soon

The 2018+ Jaguar Land Rover smart key copy function will be available in an upcoming KEYDIY KD App update. If you work with JLR vehicles regularly, this new feature will provide a faster, more efficient solution for smart key duplication while eliminating the need for online programming and additional module operations.

Stay tuned for the latest KD App update and be among the first to experience this exciting new KD-X4 capability.

KEYDIY is preparing to release a powerful new update for the Keydiy KD-X4 Key Programmer, bringing support for copying/cloning 2018+ Jaguar Land Rover (JLR) smart keys. This new function simplifies key duplication without requiring complicated vehicle programming procedures.

✅Key Advantages No need to disassemble the KVM module. No need to replace or program the RFA module. No online programming required. No code tracking issues. Faster and more convenient smart key duplication. ✅Coverage: 2018+ Jauguar Land rover NXP NCF29Ax smart key models.

Keydiy KD-X4 Support read MQB48 Immo data from programmed KD keys

Customer problem:

I bought two KEYDIY KD TDB03-3(Silver Gray)Remote Keys to work with KD-X2. The first key for Avensis F433 was generated successfully, but the second one failed.

Without battery key is read, but with battery don't work. When I press button not respond not frequency detection red indicator not blinking. An error message appeared “Unable to recognize!”

Solution:

Remove the battery before starting the generation process

Put KD TDB03-3 remote on the detection area of KEYDIY KD-X2 Remote Maker

Navigate to Remote Function-> Car Remote-> Select the related key model-> Generate-> Wireless Generate

Put the battery into the remote, just by half a centimeter

Wait the generation process is complete, and the key will be generated successfully.

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A 2021 Chevrolet Onix was brought in for a spare key programming job. Even though the vehicle already had three registered keys, the KEYDIY KD-X4 completed the entire add-key procedure smoothly via the CAN FD system. No PIN code was required, and the new key was successfully programmed through the OBD connection.

Generate the KD Key

Place the original key on the KD-X4 induction coil and identify the transponder chip.

Check the remote frequency. The original key in this vehicle is 433 MHz.

Go to: Remote Function → Vehicle Remote → CHEVROLET Onix (2019+) Folding ID4A → Generate → Wireless Generation

After generation is completed, return to the main menu.

Enter Immobilizer Programming

Connect the KD-X4 to the vehicle and enter:

Immo Programming → CHEVROLET → Select by Vehicle → South America → Onix → 2020-2023 → Mechanical Key CANFD → TYPE 9 (CAN FD) → Start Execution

Read the number of registered keys. This vehicle shows 3 keys stored.

Select Add Keys (Without Password)to continue with password-free key learning.

Learn the New Key

Turn the ignition ON and start the learning procedure.

The system reads the VIN and automatically retrieves the vehicle password. Confirm and continue.

Wait for the 12-minute security countdown.

When prompted, switch the ignition OFF, remove the original key, insert the generated KD key, then turn it back ON and hold for 5 seconds.

The hazard lights flash once the key has been successfully learned.

Check the Result

Read the registered key count again and confirm the new key has been added.

Follow the final ignition prompt to complete the procedure.

Test the newly added KD key.

Verification

The vehicle starts normally and the remote functions operate correctly.

Workshop Notes Good news for locksmiths! Even though this vehicle uses CAN FD communication, the KEYDIY KD-X4 5-in-1 Key Programmer completes the key programming process directly through the OBD port. No extra CAN FD adapter is required, making the job faster and more convenient.

On this 2024 Ford Mondeo equipped with an RH850 BCM, we use the KEYDIY KD-X4 Key Programmer to successfully program a new KD ZB21-4 Smart Key. The process begins with reading the BCM data on bench mode for secure access, and is completed by performing key learning back on the vehicle via OBD. No additional reset, EEPROM removal, or adaptation procedures are required.

1.BCM Removal & Bench Wiring

BCM needs to be accessed and set up for data reading.

Remove BCM from under the front passenger seat

Wire BCM according to the diagram and connect programming leads

Plug OTG cable into mobile device for KD app connection

Install 100Ω resistor between yellow point and red solder joint before reading

If read fails, add 1Ω resistor at pink solder joint and retry

2.BCM Data Read (Anti-theft File)

Read and save BCM data from bench setup.

Open KD app and go to: Immo Programming → KD-X4→ Read file → IMMO → Ford → BCM_R7F701053 → Read

Wait for successful read confirmation on screen

Save the file locally and keep it for vehicle programming

3.In-Vehicle Key Learning (OBD)

Move back to vehicle for key matching.

Connect OBD cable and switch ignition ON

Enter key programming menu: Key Addition→ Load the saved BCM file → Confirm key count

Place KD key in induction area (armrest box zone) and confirm learning

4.Verification

Start the engine with the newly programmed key. Check ignition start is normal and key response is OK.

Need to use a computer to access all KEYDIY KD-X4 functions. Is there a PC software version available for KD-X4? If so, where can I download the latest version and what functions are supported on the PC platform?

Free download Keydiy PC software (Software name: KD TOOLS)

Supported Devices: KD MINI ProG, KD-X2, KD-X4, KD-MP

Supported Systems： WinXp, Win7, Win8, Win10, Win11

KD TOOLS Software Display:

Unified Automotive Transponder Programming Platform for Multi-Vehicle Systems. KEYDIY KD046 and KD04D chips are advanced automotive immobilizer transponder solutions engineered to support 46-series and multi-type 4C/4D vehicle platforms. Designed for workshops handling diverse vehicle brands and generations, they help streamline key programming workflows and reduce inventory complexity. With stable performance and broad compatibility, these chips deliver reliable cross-platform key matching in real-world diagnostic and programming environments.

KD046 Chip — 46-Series Replacement Standard

The KEYDIY KD046 Chip is designed as a stable replacement solution for traditional 46-series transponder applications, offering consistent compatibility across widely used OEM and aftermarket systems.

Coverage Highlights:

Volkswagen, Citroën, Renault, Opel, Fiat, Lancia

Nissan platforms including Qashqai/X-Trailapplications

Geely, Chery, Great Wall (GWM), Zotye, Haima

Mitsubishi, Peugeot, and selected GM models

Additional regional Asian and European coverage

Package:

10pcs per lot

KD04D Chip — Multi-Type 4C / 4D Integrated Solution

The KEYDIY KD04D Chip consolidates multiple transponder formats into a single solution, reducing the need for separate chip categories in mixed-vehicle service environments.

Supported Systems:

Toyota / Lexus: 66, 67, 68, 71, 72G, 4D70 variants (including regional and hybrid applications)

Ford / Mazda: 63, 63+, 83

Subaru / Mitsubishi: 62 Subaru, 82G Subaru, 61 Mitsubishi, 62 Mitsubishi IIII

Chrysler / Dodge / Jeep: 64-series

Motorcycle platforms: Yamaha, Suzuki, Kawasaki (6A, 6B, 69, 62-series)

Additional coverage: Hyundai/Kia 4D70 (80-bit), Epica 4D60, Excelle 70, and other 4C/60-series systems

Package:

10pcs per lot

Workshop Application Value

In mixed vehicle service environments, KD046 and KD04D work as a complementary system, allowing technicians to handle different immobilizer generations without switching between multiple chip categories. This improves workflow continuity in daily key programming tasks and supports more predictable operation across diverse vehicle platforms.

Technical Appendix

KD046: 46-series transponder replacement chip

KD04D: Multi-format 4C / 4D integrated transponder chip

Requires compatible key programming device supporting corresponding transponder protocols(eg. KEYDIY KD-X4, KD-X2, KD-MAX)

Vehicle coverage depends on immobilizer system generation and ECU architecture

Some vehicle platforms may require online authorization or OEM-level access

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The KEYDIY 5C and 5D remote solution represents a major step forward in automotive key programming technology. Designed to simplify complex workflows, KD devices eliminate one of the most time-consuming steps found in traditional tools—pre-generating key programs. Instead of requiring technicians to search, select, and load the correct program manually, the KD system automatically matches the appropriate protocol during both key reading and dealer key generation.

5C, 5D remote types

When making 5C and 5D keys, the biggest difference between using a KD device and other devices is that no pre-generated program is required. During key reading and dealer key generation, the KD device automatically matches the corresponding program seamlessly, so the technician does not need to make manual selections.

Many technicians struggle to distinguish between flip keys, smart keys, older models, or newer models—but with KD, no differentiation is needed at all; the device handles everything automatically.

Support 5C types (including all ZB remotes) KEYDIY ZB17-3 KEYDIY ZB71-4 (Amber Yellow) KEYDIY DZ-ZB15-3 KEYDIY DZ-ZB15-4

Support 5D types (specified FGB remotes) KEYDIY FGB08 KEYDIY FGB25

KEYDIY officially released KEYDIY FGB25-5 PCB Board for VW, Audi, Porsche 5C/5D and BMW BDC2/BDC3/BCP remote generation. What is the difference between FGB25-5 and FGB08 PCB Board?

Both KEYDIY FGB25-5 and KEYDIY FGB08 PCB board are designed for VAG (Volkswagen/Audi) MQB49 5D smart key programming, offering similar functionality for non-UWB (Ultra-Wideband) systems. They allow for ID modification and work directly with KEYDIY KD-X4 programmer.

Here is a breakdown of the differences based on available information:

KEYDIY FGB25-5 PCB Key Board Functions

Support remote generation for VW, Audi and Porsche 5C/5D

Support remote generation for BMW BDC2/BDC3/BCP

Can be used as ZB type remote

Notes: Usually comes without a key shell (sold as PCB only).

It can match the car with 5D UWB, but the board itself does not have UWB functionality. As a result, keyless entry can lock the car but cannot unlock it.

KEYDIY FGB08 PCB Key Board Functions

Support direct key matching and ID modification for Volkswagen and Audi (original 2 chips, without UWB function), no need program generation

Support ZA and FGA generation. 5D programming temporarily unavailable afterward.

Notes: Usually comes without a key shell (sold as PCB only).

Comparison Table

In conclusion:

For 5D UWB (Ultra-Wideband): Neither board works; you must use an original, dedicated key.

Shared Ability: Both support modification of the key ID.

Recommendation: Use FGB08 for standard VW/Audi 3-button replacements and FGB25-5 for Golf 8 style, multi-brand (including Porsche/BMW) requirements.

How to read original C29Ax71 smart key data to copy key with Keydiy KD-X4, 13# Remote Chip Reading Adapter and C29AX71 Smart Key.

KEYDIY is once again pushing the boundaries of automotive key technology with the upcoming upgrade of the Keydiy KD-X4 5-in-1 Key Programmer. Designed to simplify and enhance the locksmith workflow, this new update introduces smart card synchronization, bringing greater efficiency and convenience to key programming.

At the center of this innovation is the dedicated synchronization-specialized key, C29AX71. Built to precisely match NXP29AX series original car keys, it ensures high compatibility and reliability across a wide range of vehicles. With coverage of over 75% of mainstream models worldwide, locksmiths can handle key additions without the need for complex matching procedures.

One of the standout advantages of this upgrade is its one-key synchronization function. This allows for fast and efficient key issuance without requiring multiple devices or complicated preparation steps. Additionally, there is no need to generate programs or check passwords, significantly reducing operation time and technical barriers.

The KD-X4 upgrade also offers full support for keyless systems and eliminates the need for complex wiring harness setups. This streamlined approach makes the tool not only powerful for professionals but also accessible for beginners entering the locksmith industry.

Overall, the KEYDIY KD-X4 upgrade represents a major step forward in smart key technology—making car key programming faster, easier, and more efficient than ever before.