Keydiy KD-X4 Professional Universal Key Programmer
Battery capacity | 3.7V 3500MAh |
Input power | 12V/24V/5V 1A |
Working temperature | -30 to 50 degrees |
Storage temperature | -40 to 60 degrees |
Display | 1.8-inch color screen |
Size | 200X120X40MM |
Connectivity | Bluetooth, USB 2.0 (Type B) |
Type | Devices |
Condition | New |

The KD-X4 is a professional locksmith device that combines recognition, generation, copying, programming, and matching capabilities. It can function independently or connect seamlessly to tablets, mobile phones, and PC software, offering multiple flexible operation modes. Locksmiths can select the mode that best aligns with their usage preferences.
With exclusive access to advanced industry-leading features, the KD-X4 supports a range of functionalities, including frequency detection (compatible with 2.4G), remote control generation, remote control simulation, keyless remote simulation, remote control copying, chip recognition and copying, chip generation, chip acquisition, key unlocking, IMMO programming, programmer data reading and writing, online upgrades, and more.
This device stands out for its user-friendly operation, reliable performance, and broad compatibility with various car models, making it an essential tool for locksmith professionals.
Functions of the KD-X4 Locksmith Device:
- Remote Generation
- Supports the generation of over 5,600 remote control programs.
- Includes 2019+ Toyota Rollin-Code bypass cable and MQB key programming.
- Remote Copying
- Enables copying remote controls for over 50 car models.
- Key Simulation
- Offers remote control and smart key simulation capabilities.
- Frequency Detection
- Detects frequencies including 315M, 433M, 467M, 868M, 902M, and 2.4G.
- Anti-Theft Chip Recognition
- Supports recognition of various chip types, such as MLB, 5C, 46, 47, 48, MOB48, 4D, 4C, 8A, 6A, 4A, 8E, 8C, 13, 11, 12, 7935X, 49, 33/40-44 AUDI5, ID card IC card, and more.
- Specialized Chip Generation
- Generates specific chips including Toyota G, NB multifunctional specialized chips, 30/40-44, 48, 4D/4C, Toyota 8A/H, and 46 specialized chips.
- Chip Acquisition
- Provides multiple acquisition methods, such as device, antenna, and external acquisition.
- Supports data acquisition for 46, BYD all-key-lost, 48, OBD 48, and other chip types.
- Key Unlocking
- Unlocks keys for 36 different brands.
- Battery Voltage Detection
- Tests 3V remote key battery voltage.
- Key Leakage Detection
- Identifies leakage in 3V remote control keys.
- Second-Hand Remote Programming Without Unlocking
- Programs used keys (Toyota/Lexus 8A-AA, BA, 4A type) without unlocking.
- IMMO Programming
- Supports immobilizer programming for 51 brands, with regular updates for additional models.
- Programmer Function
- Reads IMMO data for Volkswagen Audi MQB models.
Button and Interface Functions:
- Power Button: Turns the device on/off.
- Chip Recognition Button: Detects and identifies chips; long press activates additional functions.
- Remote Copy Button: Copies remote controls and switches between functions.Frequency Detection Button: Measures frequency up to 1GHz and enables additional mode selection.
- Key Induction Coil & IMMO Chip Placement Hole: Used for identifying and copying car key IMMO chips.
- Frequency Detection Area: Detects the frequency of key remote controls.
- Power Indicator Light: Displays charging and operational status.
- USB Interface: Supports charging and wired connections.
- Programmer Interface: Reads Volkswagen MQB dashboard, Audi dashboard, and EEPROM data.
- Wired Programming Interface: Supports KD wired remote generation and battery voltage detection.
- Collection Antenna: Captures ignition and chip data.
- External Acquisition Antenna Interface: Supports additional data collection and simulation.
- Toyota Adapter Cable Interface: Used for Toyota/Lexus smart key operations.
- OBD Main Cable Interface: Connects to a vehicle for programming via the Mobile KD App.
Package Includes:
1x KD-X4 Device
1x OBD Main Cable
1x USB Cable
1x Toyota Adapter Cable
1x Programmer Adapter Board
1x Programmer Wiring Cable
1x Remote Control Burning Cable
1x Key Unlocking Cable
1x External Acquisition Antenna