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OBDSTAR X300 Classic G3 User Manual & FAQs

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Update time : May 20, 2025

OBDSTAR X300 Classic G3

OBDSTAR X300 Classic G3 is a professional level automotive diagnostic and programming device that supports key programming, ECU unlocking, battery management module reset, and other functions for multiple vehicle types (such as cars, electric vehicles, motorcycles, ships, etc.)

Below is the OBDSTAR X300 Classic G3 user manual, vehicle list, device comparison and some FAQs.



Click on the link to download the PDF: 

OBDSTAR X300 Classic G3 User Manual



Q: What car models can the OBDSTAR X300 Classic G3 support?: 


A: Car, HD, E-Car, Motorcycle, Marine (jet-ski) immo

Click on the link to download:

OBDSTAR X300 Classic G3 coverage (vehicle list)





Q: What is the new features of OBDSTAR X300 Classic G3 ?

A:

- New system, new design, larger storage, better camera, BT5

- Comes with P004 and MP001 Programmer

- With built-in CAN FD/DoIP/RFID/Renault Converter

- IMMO, odometer (optional), mileage (optional), airbag reset (optional) and test platform all in one.



Q: What is the difference between X300 G3 and X300 DP Plus:


A: The table below:

Function OBDSTAR X300 DP Plus C

Obdstar X300 Dp Plus

OBDSTAR X300 Classic G3 (Key Master G3)

Obdstar X300 Class G3

Operation system Android 5.1.1 Android 11
OTA x
Screen recording x
Wireless screen casting x
CPU qual core ARM cortex A9 1.4GHz Quad-core 64-bit Cortex-A55 2.0GHz
Battery 3700mAh 9000mAh
Storage capacity 1+32GB 4+64GB
LCD 8.0 inch 8.0 inch fully laminated sunlight readable screen
Camera Rear camera 500W pixels Rear camera 800W pixels, auto-focus
Bluetooth Bluetooth 4.2 Bluetooth 5.0(Compatible with BT 4.2)
External interfaces x RJ-45√
x HDMI√
TYPE-A TYPE-A,TYPE-C
WiFi 2.4G Dual-band 2.4G/5GHZ
VCI STM32F105 STM32H723
CANFD Adapter Required CANFD built in√
x DOIP built in√
x Low Speed(Fault Tolerant) CAN built in√
x RS232, RS485 built in√
All other common protocol types All other common protocol types
RFID P001 Required Built-in√
Remote Test RT100 Required Built-in√
Renault Converter Renault Converter Required Built-in√
Weight About 1kg 1.5kg (main unit)
Dimension 254mm*174mm*35mm 270.5mm*165mm*39mm
Diagnosis x
OBDⅡ
Car IMMO
MOTO IMMO
HD IMMO
Marine IMMO x
E-Car IMMO x
RFID x
Make key x
Unlock Smart key x
Renew key
Read/Write EEPROM MCU
ECU advanced(Includes ECU unlock) x
Oil/Service reset
Other service function x
Remote test x
ECU flasher IMMO(IMMO OFF、ISN、IMMODATA) x
ECU flasher(Clone)
Limited supported models, different with DC706 and G3
Paid activation
Car/Motorcycle cluster recalibration Paid activation
Airbag reset Paid activation
Test Platform x Paid activation


In Sum:


X300 Classic G3 has built-in CAN FD, DoIP, RFID and Renault converters. Don’t need to purchase extra CAN FD, RFID, Renault converters.


The new X300 Classic G3 comes as an immobilizer tool. You can add mileage correction, airbag reset, ECU cloning (DC706 functions) and test platform license to the device. Turn the device into a all-in-one tool.


X300 Classic G3 has a new system, larger storage, bigger battery, BT 5.0 and more advanced hardware configuration.


X300 Classic G3 is mainly targeted at automotive electronics repairers or professional locksmiths, so it does not include the diagnostic and maintenance functions of X300 DP PLUS (except for Manual Service Lamp Reset), but it adds a lot of new special functions.




Q: What’s the difference between X300 Classic G3 and Key Master G3?


A: They are the same. Green is for abroad resellers and orange one for Chinese resellers.

between X300 Classic G3 and Key Master G3



Q: Is it a key programmer or a cloning tool?


A: This tool comes as an immobilizer tool. You can add the cloning, airbag, mileage software after purchase. It works as well as the DC706 for cloning and uses the MP001 interface so a bit more convenient. You can turn the device into an all-in-one tool.