Description
KEYDIY KD‑X4 Locksmiths Universal Tool
The KEYDIY KD‑X4 is a professional-grade, all‑in‑one key programmer designed for locksmiths and auto technicians. It combines key recognition, generation, copying, programming, and simulation into a single, versatile unit that can be used standalone or paired with tablets, smartphones, and PCs .

🔧 Core Features
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Remote generation: Supports over 5,600+ remote control programs, including Toyota Rolling‑Code bypass and MQB key programming .
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Remote copying: Enables duplicating remotes for 50+ vehicle models .
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Key simulation: Simulates both traditional remotes and smart keys for testing .
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Frequency detection: Detects frequencies of 315 MHz, 433 MHz, 467 MHz, 868 MHz, 902 MHz, and 2.4 GHz remotes .
🛡️ Advanced Chip & IMMO Functions
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Chip recognition, reading, copying & generation of a wide array of transponder types—including 46, 48, 4C/4D, MOB48, 8A, Toyota G series, NB multifunctional chips, and more .
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Chip acquisition modes: Via device coil, external antenna, or OBD for scenarios like “all‑key‑lost” .
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IMMO programming: Supports 51+ car brands, with continuous software updates for emerging models .
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Special features:
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Toyota/Lexus used‑key reprogramming without unlocking
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Unlocks keys from 36 different brands
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Plant‑first MLB chip detection technology
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Industry debut UWB Bluetooth key detection
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CAN-FD integration for diagnostics without extra hardware
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24 V support for Chinese heavy-duty trucks

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⚙️ Hardware & Interface Specs
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Battery: 3.7 V, 3,500 mAh (some models list 2,000 mAh) .
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Display: 1.8″ or 2.8″ color screen depending on variant .
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Power Input: 5–12 V, 1–2 A adaptable .
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Operating range: −30 °C to +50 °C; storage −40 °C to +60 °C .
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Connectivity: Bluetooth (BLE), USB‑B (Type B) for wired or wireless control .
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Size: Approximately 200 × 120 × 40 mm .
🛠️ User Interface & Operation
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Physical buttons for power, chip recognition, remote copy, and frequency detection, each with dedicated or long-press secondary functions .
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Induction coil and detection zones for IMMO chip reading, key simulation, and frequency measurement .
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Power light indicators: Flashing for on, yellow while charging, green when fully charged .
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Interfaces include USB port, OBD main cable, programmer interface (for EEPROM/BCM reading), external antenna port, Toyota adapter, and battery/voltage detection cable .

📦 Package Contents
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KD‑X4 Main Device
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OBD Main Cable
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USB Charging/Data Cable
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Toyota/Lexus Adapter Cable
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Programmer Adapter Board + Wiring Cable
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Remote Burn Cable
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Key Unlocking Cable
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External Acquisition Antenna

✅ Why It Stands Out
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True all‑in‑one solution: replaces multiple devices through comprehensive coverage
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Standalone flexibility or app/PC integration – ideal for mobile locksmiths
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Powerful coverage: from basic remote work to deep IMMO and chip-level diagnostics
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Rugged: built for harsh conditions, across temperature extremes
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Industry‑leading features like MLB detection, UWB/Bluetooth support, heavy‑truck compatibility







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