KEYDIY KD-X4 combines the functions of KD Master, KD Max, KD Mate, and KD Mini Prog in one powerful device. Supports key recognition, generation, copying, programming, and matching — works alone or with phone, tablet, or PC.
KEYDIY KD-X4 Key Programmer Free with DB25 Key Programming Cable
KEYDIY KD-X4 New Release:
For BMW G Series BDC2 add key with BDC2 adapter
For VAG MQB/MLB Add key no removing cluster with KD-MP tool
For BMW G chassis BDC3 add key function. No need access to the vehicle, get data from original key. (Need generate KD FGB23/ KD FGB57 remotes)
For MQB49 5C 5D Key Adding
Newly support for Jaguar and Land Rover models manufactured after 2018
It supports key programming without disassembling the KVM module or going through online programming, and no code tracking
It works with original factory keys and KD ZB keys
KD-X4 has been upgraded with the function of generating original BMW G chassis key to BDC03 type. Each generating will need 180 KD coins or 5USD (If generate with KD FGB remote will gain KD coins). Please update Mobile KD and KD-X4 before using.
New Update (Jan. 2026):
VW MQB49/5C Key Adding
VW/Audi 5D Key Adding
Porsche 5D Key Adding
BMW BDC/BCP No-disassembly Key Adding (Including the LCD key)
KD-X4 is an all-in-one professional locksmith tool that integrates identification, generation, duplication, programming, and matching capabilities.
It can operate as a standalone device or connect flexibly to tablets, smartphones, and PC software, allowing locksmiths to choose the workflow that best suits their habits.
The tool features exclusive, industry-leading technologies and supports a wide range of functions, including frequency detection (2.4G supported), remote control generation/simulation/copying, keyless entry simulation, chip identification/ duplication/ generation/ acquisition, key unlocking, immobilizer programming, and programmer read/ write operations.
With regular online updates, the KD-X4 has established itself as a professional solution known for its user-friendly operation, reliable performance, and extensive vehicle coverage.
KD-X4 Innovation Funcion
Yamaha ID47/ID49 motorcycle key barcode retrieval function
Toyota, Hyundai Kia smart key programming
Detect 868MHZ and 902MHz frequency remote detection
Detect MLB Key
Detect Bluetooth Key
Suzuki/Honda motorcycle read PIN Code
KD-X4 Function:
Remote Generation:
Supports over 5600 remote control programs, enabling quick and versatile remote creation.
Toyota Rolling-Code & MQB Key Programming:
Supports Toyota 2019+ models with rolling-code bypass and VW/Audi MQB key programming.
Remote Copying:
Compatible with 50+ vehicle brands for easy cloning and duplication of remotes.
Key Simulation:
Simulates both standard remotes and smart keys for testing and verification.
Frequency Detection:
Detects 315M, 433M, 467M, 868M, 902M, and 2.4G frequencies for accurate diagnosis.
Transponder (Chip) Recognition:
Supports a wide range of chips including MLB, 5C, 46, 47, 48, MOB48, 4D, 4C, 8A, 6A, 4A, 8E, 8C, 13, 11, 12, 7935X, 49, and 33/40–44 AUDI5 ID card/IC card.
Specialized Chip Generation:
Generates Toyota G, NB multifunction, 30/40–44, 48, 4D/4C, Toyota 8A/H, and 46 series specialized chips.
Chip Data Acquisition:
Supports built-in, external, and antenna-based data collection methods — ideal for BYD all-key-lost, OBD 48, and similar scenarios.
Key Unlocking:
Unlocks keys from 36 different brands, enabling re-use of used keys.
Battery Voltage Detection:
Tests 3V remote key battery voltage to ensure stable performance.
Key Leakage Detection:
Identifies current leakage issues in 3V remotes to prevent malfunction.
Used Remote Programming (No Unlock Required):
Directly programs used Toyota/Lexus 8A-AA, BA, 4A type keys without unlocking.
IMMO Programming:
Supports 51+ car brands, with ongoing updates for newer models.
Programmer Function:
Reads IMMO data from VW/Audi MQB dashboards for advanced immobilizer work.
KD X4 Button and Interface Introduction: 1. Power on/off button:
In the shutdown state, press and hold the power button for 2 seconds to turn on the device.
When the device is turned on, press and hold the power button for 2 seconds to turn it off.
2. Chip recognition button:
Press the chip recognition button to enter the chip detection function; long-press the chip recognition button to enter the function switching menu, where you can select chip recognition, ignition coil detection, and system settings functions.
3. Remote copy button:
Press and hold the remote copy button to enter the remote normal copy function. Long-press the remote copy button to enter the function switching menu, where you can select the normal copy, special copy, and remote data comparison functions.
4. Frequency detection button:
Press and hold the frequency detection button to enter the frequency detection mode within 1GHz. Press and hold the frequency detection button to enter the function switching menu, where you can select frequency detection within 1 GHz, 2.4 GHz frequency detection, or battery voltage detection/leakage detection.
5. Key induction coil and immo chip placement hole:
Used for identifying and copying car key immo chips, and can also be used for wireless generation of KD remotes.
6. Frequency detection area:
Place the key in the frequency detection area and press the key remote control button to detect the remote control frequency.
7. Power indicator light:
Used for power on and charging status indication, power on status: indicator light flashes; Charging status: The indicator light is constantly on and turns yellow; Fully charged state: The indicator light is constantly on and turns green.
8. Display screen:
It can display device information and key information, etc.
9. USB interface:
Used for charging, wired connection to mobile phones or PC terminals.
10. Programmer interface:
Used for programmers to read data from Volkswagen MQB dashboard, Audi dashboard or BCM data, as well as various octagonal chip EEPROM data reading and writing.
11. Wired programming interface:
Used for KD wired remote generating, unlocking with original keys, remote battery voltage detection, and leakage detection.
12. Collecting antenna:
It is used for collecting data on car ignition, testing ignition coils, chip simulation, and other functions.
13. External acquisition antenna interface:
It is used for collecting car ignition data, ignition coil detection, chip simulation, and other functions.
14. Toyota adapter cable interface:
Toyota/Lexus smart key all key lost cable interface.
15. OBD main cable interface:
Connect the external OBD 15 cable to the car, connect the Mobile KD APP, and enter the programming function for use.
KEYDIY KD-X4 Function Activation Fee:
Function / Service
Activation Fee
One-time Fee
Fee Deduction Rules
Volvo programming (Semi-smart key, 8A smart key) Dismantle and read the CEM data
For KD-MP: The first account bound to KD-MP is free. For each additional account, you will have to pay 1000KD-coins or 15 US dollars.
For KD-X4 is free.
200KD-Coins/3USD
When generating the dealer key, same ID is free to charge
Info about KEYDIY Verification, KD Coins Recharge & Function Activation
How to use KD-X4 to add Volkswagon 5C Key with KD Remote
How to Add an Original VW Audi 5D Key Using KD-X4 | Step-by-Step Tutorial
How to use KEYDIY KD-X4 to read BMW BDC03 encrypted key data to add the FGB key
How to use KEYDIY KD-X4 amd BDC03 Clip Adapter add BMW BDC03 key
How to use KEYDIY KD-X4 to Program U Chassis & BCP Original Keys
How to use KEYDIY KD X4 with BDC2 Adapter Add BMW G38 Key
How to use KEYDI KD X4 Program 2019 year VW Golf MQB48 AKL
How to use KEYDIY KD X4 and Phone as Key Add 2014 BMW 3 series FEM Key
How to use KD-X4 add 2024 year Porsche Cayenne MLB key
2024 Porsche Cayenne Key Programming Using KD-MP, KD-X4 & KD-MLB
How to use KEYDIY KD X4 Add 2023 BMW X3 G series BDC3 key
KEYDIY KD-X4 Program Jaguar Land Rover KVM RFA module SPC560B60L3 chip fast and safe
Tech Support
KEYDIY KD-X4 FAQs:
What is the KEYDIY KD-X4, and what does it do?
The KEYDIY KD-X4 is an advanced locksmith tool designed for automotive key programming and repair tasks. It combines functionalities such as key recognition, generation, copying, programming, and matching into one device. It supports over 5600 remote control program generations, frequency detection, chip recognition, and immobilizer programming for various car brands.
Which car models and brands does the KEYDIY KD-X4 support?
The KD-X4 supports over 51+ car brands, including Toyota, Lexus, Ford, Volkswagen, Audi, and more. It also provides specialized functions like Toyota Rollin-Code Bypass and MQB key programming for 2019+ Toyota models.
Can the KD-X4 unlock and reprogram used car keys?
Yes, the KD-X4 supports unlocking used keys, including Toyota 8A, 4A, and other transponder types, allowing them to be reprogrammed for another vehicle.
Does the KD-X4 support key programming for heavy-duty trucks?
Yes, the KD-X4 includes 24V Chinese heavy-duty truck key programming, making it compatible with commercial vehicles.
What languages does the KEYDIY KD-X4 support?
The KD-X4 offers multilingual support in 19 languages, including Arabic, Korean, German, Spanish, English, and Chinese, making it accessible to users worldwide.
What is included in the KD-X4 package?
The KEYDIY KD-X4 box contains the KD-X4 device, OBD main cable, USB cable, Toyota adapter cable, programmer adapter board, programmer wiring cable, remote control burning cable, key unlocking cable, and an external acquisition antenna.