OBDSTAR X300 Pro4 Pro 4 Key Master Auto Key Programmer
Free Update Online for One Year – $300 per year thereafter
Dealer Code: 860755B1

Overview
The OBDSTAR X300 Pro4 is a comprehensive immobilizer programming device engineered by OBDSTAR for professional locksmiths. Building on OBDSTAR’s proven immobilizer technology, this all-in-one tool offers early model support, broad vehicle coverage, fast programming speed, and specialized features. With optimized hardware, the X300 Pro4 delivers stable, smooth, and efficient performance in a compact, user-friendly design.
Key Highlights
- Covers the same immobilizer functions as the OBDSTAR X300 DP Plus
- Frequent updates released every 2–3 days
- Free online updates for one year; renewal fee of $300 per year after
- Strong market competitiveness with industry-leading advantages
- Supports select 2018–2019 vehicle models (e.g., GM, Mazda, Renault)
- Included help function for select models (R&D updates ongoing)

Programmer Functions
- Programming Keys
- Erase Keys
- Programming Remote
- Read Key Numbers
- Pincode Reading
- EEPROM Chip Read
- OBDII Diagnosis
Latest Update Information
OBDSTAR X300 DP Plus Update – October 29, 2019
BMW [V30.32] Upgrade Support Includes:
- CAS1 7 Series E65/E66 (2001–2005)
- CAS2 3 Series E90/E91/E92/E93 (2005–2007)
- CAS2 5 Series E60/E61 (2004–2007)
- CAS2 6 Series E63/E64 (2003–2008)
- CAS2 7 Series E65/E66 (2005–2009)
- CAS3 1 Series E81/E82/E87/E88 (2007–2008)
- CAS3+ 1 Series E81/E82/E87/E88 (2009–2012)
- CAS3 3 Series E90/E91/E92/E93 (2007–2009)
- CAS3 3 Series E90/E91/E92/E93 (2009–2012)
- CAS3/CAS3+ 5 Series E60/E61 (2008–2010)
- CAS3/CAS3+ 6 Series E63/E64 (2008–2010)
- CAS3+ X1 E84 (up to 2014)
- CAS3+ X5 E70 (2008–2013)
- CAS3+ X6 E71/E72 (2008–2014)
- CAS3/CAS3+ Z6 E89 (2008–)
- CAS3+ Mini (2008–2014)
Supported Vehicle Brands
Europe
BMW, Benz, Borgward, Peugeot, Citroen, DS, Dacia, Fiat, Jaguar, Lancia, Land Rover, Opel, Porsche, Renault, Smart, Volvo, Iveco, VW/Audi/Skoda/Seat
Japan
Honda, ISUZU, Mazda, Mitsubishi, Nissan, Subaru, Suzuki, Toyota, Lexus
Korea
Hyundai, KIA, Ssangyong
America
Ford, Chrysler, GM
China
Baic, Besturn, Bisu, Brilliance, BYD, Changan, Changhe, Chery, Cowin, DFFengshen, DFFG, Dfliuzhou, Enranger, Foton, Geely, Greatwall, Hafei, Hanteng, Hawtai, Himiko, Hongqi, Huanghai, JAC, Jiabao, JMC, Lifan, Lufeng, Luxgen, Maxus, Qnlotus, Qoros, Roewe, SGMw, SWN, SoUEAST, TJFAW, Traum, Trumpchi, Xenia, Yema, ZD, Zhongxing, Zotye, Changfeng
Comparison: X300 Pro4 vs X300 DP Plus
| Function | X300 DP Plus | X300 Pro4 |
|---|---|---|
| Software (Immo) | ||
| Programming Keys | √ | √ |
| Erase Keys | √ | √ |
| Programming Remote | √ | √ |
| Read Key Numbers | √ | √ |
| Pincode Reading | √ | √ |
| EEPROM Chip Read | √ | √ |
| OBDII Diagnosis | √ | √ |
| Cluster Calibration | √ | × |
| Diagnosis | √ | × |
| ECU Clone | √ | × |
| ECU Programming | √ | × |
| Oil Service Reset | √ | × |
| Other Special Functions | √ | × |
| RT100 Remote | √ | × |
| Luxury Models Coverage | √ | × |
| Specification | ||
| Operating System | Android 5.1.1 | Android 5.1.1 |
| Camera | Supported | × |
| CPU | Exynos4418 Dual Core ARM Cortex A9 1.4GHz | RK3128 Quad-core ARM Cortex A7 @1.2GHz |
| Battery | 3700mAh Rechargeable Polymer Lithium Battery | 2600mAh Lithium Ion |
| Extension Memory Card | 32G Micro SD (TF) card supported | 32G Micro SD (TF) card supported |
| Storage Capacity | 32GB | 16GB |
| LCD | 8.0 inch | 5.0 inch |
| LCD Resolution | 1280×800 | 800×600 |
| Touch Screen | Capacitive Touch Screen | Capacitive Touch Screen |
| Wi-Fi | Supported | Supported |
| Working Temperature | -10℃ ~ 55℃ (14℉ ~ 131℉) | -20℃ ~ 55℃ (14℉ ~ 131℉) |
| Storage Temperature | -20℃ ~ 70℃ (-4℉ ~ 158℉) | -20℃ ~ 70℃ (-4℉ ~ 158℉) |
| Weight | About 1.0kg | About 700g |
| Dimensions | 254mm × 174mm × 35mm | 140mm × 89mm × 18mm |

Accessories Included

Device Overview

- Power/Lock Button
- Main Cable Port
- Charging Port
- TYPE-C Interface
- USB Interface
- TF Card Slot
- Touchscreen/Display Screen
- Speaker
- Serial Number Sticker
How to Register, Activate, and Update
Power On: Press and hold the Power button for 5 seconds.
Registration & Activation:
Navigate to VCI Function → User Information → Register → Fill in required details.

Technical Specifications
- Operating System: Android 5.1.1
- CPU: RK3128 Quad-core, ARM Cortex A7 @1.2GHz
- Battery: 2600mAh Lithium Ion
- Memory Expansion: Supports 32G Micro SD (TF) card
- Internal Storage: 16GB
- LCD Display: 5.0 inch
- Resolution: 800×600
- Touch Screen: Capacitive Touch Screen
- Wi-Fi: Supported
- Working Temperature: -20℃ ~ 55℃ (14℉ ~ 131℉)
- Storage Temperature: -20℃ ~ 70℃ (-4℉ ~ 158℉)
- Weight: Approximately 700g
- Dimensions: 140mm × 89mm × 18mm
Package Contents
- 1pc x X300 Pro4 Unit
- 1pc x Main Cable
- 1pc x Charger
- 1pc x OBDII-16
- 1pc x HYUNDA-10
- 1pc x KIA-20
- 1pc x HONDA-3
- 1pc x P001 Programmer
- 1pc x C001 Board
- 1pc x C002 Board
- 1pc x W001
- 1pc x Tool Box
- 1pc x OBDSTAR Certificate
- 1pc x X300 Pro4 Quick Guide Manual
- 1pc x Packing List
- 1pc x Multifunctional Jumper (Optional)
- 1pc x Renault Converter (Optional)
- 1pc x FCA 12+8 (Optional)

























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