KEYDIY KD-X4 KDX4 5-in-1 Key Programmer Combines KD Max, KD Mate and KD Mini Prog

The KEYDIY KD-X4 is a professional automotive key programming device that integrates five core functions: recognition, generation, copying, programming, and matching. It operates independently or connects seamlessly to tablets, smartphones, and PC software across multiple free modes—allowing locksmiths to choose the workflow that best fits their preferences. The device also offers exclusive early access to select industry-leading features.

KD-X4 combines the full capabilities of: KD Master + KD MAX + KD MATE + KD MINI PROG.

KEYDIY KD-X4 Locksmith's Universal Tool Features

• Industry Debut UWB (Bluetooth) Key Detection: Detects Bluetooth-enabled car keys with precision.
• Toyota Used Key Unlock-Free Programming: Exclusive feature for programming Toyota used keys without unlocking.
• MLB Chip Detection Function: First-to-market technology for detecting MLB chips.
• CANFD Integration: No additional accessories required for advanced diagnostics.
• 24V Chinese Heavy-Duty Truck Model Programming: Supports heavy-duty truck key programming.
• Built-In Programmer Function: Future support for 5A mileage programming.
• One-Second Startup: Boosts efficiency by reducing startup time significantly.
• Multilingual Support: Available in 19 languages, including Arabic, Korean, German, Spanish, English, and Chinese.
• Ford Alarm Cancellation & Toyota 8A Blade Key Programming: One wire harness handles both tasks (requires separate purchase).

KEYDIY KD-X4 Universal Key Programmer Supported Functions

• Remote Generation: Supports 5600+ remote control program generations.
• Toyota Rollin-Code Bypass + MQB Key Programming: For 2019+ Toyota models.
• Remote Copying: Compatible with 50+ car models.
• Key Simulation: Simulates remote controls and smart keys.
• Frequency Detection: Detects 315M, 433M, 467M, 868M, 902M, and 2.4G frequencies.
• Anti-Theft Chip Recognition: Supports 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.
• Specialized Chip Generation: Generates Toyota G, NB multifunctional, 30/40-44, 48, 4D/4C, Toyota 8A/H, and 46 specialized chips.
• Chip Acquisition: Supports device acquisition antenna, external acquisition antenna, and built-in acquisition enhancer for BYD all-key-lost scenarios, OBD 48, and more.
• Key Unlocking: Works with 36 different brand keys.
• Battery Voltage Detection: Tests 3V remote key battery voltage.
• Key Leakage Detection: Identifies 3V remote control key leakage.
• Second-Hand Remote Programming Without Unlocking: Supports Toyota/Lexus 8A-AA, BA, 4A-type used key unlock-free programming.
• IMMO Programming: Compatible with 51+ brands, with continuous updates.
• Programmer Function: Reads IMMO data from Volkswagen Audi MQB dashboards.

Button and Interface Function Description

Using the KEYDIY KD-X4 is straightforward and user-friendly. Follow these steps to get started:

Power On/Off Button

• In the off state, press and hold the power button for 2 seconds to turn on the device.
• When the device is on, press and hold the power button for 2 seconds to turn it off.

Chip Recognition Button

• Press to enter the chip detection function.
• Long press to access the function-switching menu, where you can select:
  • Chip Recognition
  • Ignition Coil Detection
  • System Settings

Remote Copy Button

• Press to enter the remote normal copy function.
• Long press to access the function-switching menu, where you can select:
  • Normal Copy
  • Special Copy
  • Remote Data Comparison

Frequency Detection Button

• Press to enter the frequency detection mode within 315MHz.
• Long press to access the function-switching menu, where you can select:
  • Frequency Detection within 315MHz
  • 433.92MHz Frequency Detection
  • Battery Voltage Detection / Leakage Detection

  (Refer to Figure 3 on the right)

Key Induction Coil and IMMO Chip Placement Hole

Used for identifying and copying car key IMMO chips. Can also generate KD remotes wirelessly.

Frequency Detection Area

Place the key in this area and press the remote control button to detect the frequency.

Power Indicator Light

• Power On Status: Indicator light flashes.
• Charging Status: Indicator light stays on and turns yellow.
• Fully Charged Status: Indicator light stays on and turns green.

Display Screen

Displays device information, key information, and more.

USB Interface

Used for charging or connecting to mobile phones or PC terminals via a wired connection.

Programmer Interface

Used to read data from Volkswagen MQB dashboards, Audi dashboards, BCM data, and various octagonal chip EEPROMs.

Wired Programming Interface

Used for KD wired remote generation, unlocking original keys, detecting remote battery voltage, and leakage detection.

Collecting Antenna

Collects car ignition data, tests ignition coils, performs chip simulation, and other functions.

External Acquisition Antenna Interface

Used for collecting car ignition data, ignition coil detection, chip simulation, and similar functions.

Toyota Adapter Cable Interface

Used for Toyota/Lexus smart key all-key-lost scenarios.

OBD Main Cable Interface

• Connects the external OBD II cable to the car.
• Works with the Mobile KD App to enable programming functions.

Product Specifications

• Battery capacity: 3.7V 3500mAh
• Input power: 12V/24V/5V 1A
• Working temperature: -30°C to 50°C
• Storage temperature: -40°C to 60°C
• Display: 1.8-inch color screen
• Size: 200 × 120 × 40 mm
• Connectivity: Bluetooth, USB 2.0 (Type B)

KEYDIY KD-X4 Key Programmer Frequently Asked Questions

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.

KEYDIY KD-X4 Key Programmer: Frequently Asked Questions

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.

Package Includes:

• 1pc x KD-X4 Device
• 1pc x OBD Main Cable
• 1pc x USB Cable
• 1pc x Toyota Adapter Cable
• 1pc x Programmer Adapter Board
• 1pc x Programmer Wiring Cable
• 1pc x Remote Control Burning Cable
• 1pc x Key Unlocking Cable
• 1pc x External Acquisition Antenna