Original OBDSTAR brand tools, including OBDSTAR X300 DP Plus, X300 Pro4, P50, Odomaster, X300M, DC706, Adapters and Test Platforms from obdii365.com.
OBDSTAR DC706 MDG1 boot glitch unlocking new user report:
FCA Fiat Ducato Bosch MD1CS069 TC299TP unlocked! Success!
Requqires MP001 + c4-06 adapter.
In boot mode.
The connection diagram is inside the software.
Most important is checksum.
Checksum correction is automatically in writing flash.
OBDSTAR G3 and ECU Master will do the same.
OBDSTAR X300 Classic G3 successfully added a spare 8A proximity smart key to a 2024 Toyota Tacoma.
Connect a 30-pin Toyota cable to bypass the gateway.
Read immo data. This function requires a network connection.
Then add key.
Eoneboss TLK-1 collects the data after it is programmed to the car, then transfers the data it collected and write it the unlock smart.
After program key, program ID box with steering lock.
Select immo data backed up, hold a programmed smart key agaigneset the start button to sync ID.
Images attached:
This article provides a detailed guide on using the OBDSTAR ECU Master tool with C4-01 adapter to read the Audi SIMOS 18.1 ECM (Engine Control Module) in boot mode.
The demonstration focuses on reading an Audi container ECM, specifically the SIMOS 18.1 variant, which is commonly found in:
Laptop-Based Operation
Connection Quality
The connections are described as:
The C4 Adapter Connection
The C4 adapter plays a crucial role in this process. Unlike previous guides where direct connections were used, this demonstration utilizes the EPROM-based system approach. The connection setup involves:
Both connections work together with the C4-01 adapter to enable proper communication with the ECU
Reading Process
The reading process involves the following steps:
Performance and Speed
One of the standout features demonstrated is the impressive reading speed. The tool reads the ECU data quickly, making it practical for professional use without requiring excessively long wait times.
In this article, we'll cover the most frequently asked questions about this powerful ecu programming tool- OBDSTAR ECU Master.
The tool is divided into four packages: A, B, C, and D. These cover passenger vehicles, motorcycles, heavy-duty systems, and airbag systems respectively. Users can purchase the hardware with full package activation or choose individual package unlocks based on their specific needs.
Supported Vehicle Models
The ECU Master supports a broad range of manufacturers and modules. In the software, users can view a comprehensive list of compatible vehicles and systems. One notable feature is the color coding:
Red text indicates modules that are in beta version or have been recently added in the latest update.
Heavy-Duty Vehicle Support
A major differentiator for the ECU Master is its heavy-duty line support – a feature not available in other OBDSTAR tools like the DC706. The tool supports:
BCM, ECM, and TCM systems for trucks
Power/torque modification options
Solenoid writing
Actuator hours modification
Engine number changes
Power Supply Requirements
For heavy-duty vehicle programming, the tool requires an external power supply capable of delivering:
21–24V
At least 5A
This is critical to maintain stable voltage during programming – especially for truck modules.
Advanced Functions
While the ECU Master currently does not have a dedicated "Advanced Functions" menu like the G3, many advanced operations are already available within the specific module menus.
Common Questions and Answers
1. Will the DC706 Stop Working After the ECU Master Release?
No. The DC706 will continue to function normally. The ECU Master is a new tool with added capabilities (especially heavy-duty support), but it does not replace or disable existing tools. In fact, many of the functions available on the ECU Master are the same as those on the DC706.
2. Are MP001, P003, or P004 Adapters Needed?
No. Because the ECU Master is a new release, these adapters have already been integrated into the hardware. Users do not need to purchase separate adapters – all necessary connections are built in.
3. What About Fiat Systems?
Fiat has many systems currently under development. While some functions may not work 100% yet, the engineering team is actively working on implementation. Users may notice that some Fiat modules do not show a dedicated "Erase Crash" option. However, in many cases, performing a DTC erase will also clear crash data – especially on newer Fiat modules.
4. Why Do Some Modules Show Different Colored Connectors?
This is not unique to OBDSTAR tools – it's an industry-wide reality. The same module can come in multiple versions with different connector colors (e.g., white, gray, green, pink, yellow). If the tool doesn't show your specific connector version, you have two options:
Search for the pinout online using the module number
Contact OBDSTAR support for assistance
5. What If the Tool Won't Communicate with a Module?
If communication fails even after following the correct connection procedure:
Collect the log data from the tool
Send the logs along with the tool's serial number to the support team
Ensure your tool is within the update period so that test or repair files can be downloaded
The factory will analyze the logs and may send a test file. Turnaround time can vary (24–48 hours) depending on time zones and the complexity of the issue.
6. What Are Beta Versions?
Beta versions are test modules that are still under development. If a module is marked as beta and you encounter issues, simply send the log data to support. The engineering team will gradually improve and add functionality over time.
One common source of confusion is the difference between bench (BENCH) and boot (BOOT) connections:
| Connection Type | Description |
|---|---|
| Bench (BENCH) | Uses a dedicated connector or pinout. No soldering required. The tool provides step-by-step pinout diagrams. |
| Boot (BOOT) | Requires soldering to specific points on the PCB to unlock communication. The tool provides detailed diagrams showing which pins or capacitors need to be bridged or removed. |
Log Collection and Factory Support
When encountering issues, users are encouraged to:
Perform the connection as per the tool's instructions
If communication fails, collect log data from the tool
Send logs + serial number to OBDSTAR support
The factory will analyze and potentially send a test file
Wait for feedback (typically 24–48 hours)
This feedback loop is critical for the tool's ongoing development, especially for beta modules.
The article focuses on the latest generation of Renault ECMs, specifically the model identified as ME17.9.23. This is a significant upgrade from previous units and is found in the newest Renault models like the Duster and Megane.
The primary challenge with this ECU lies in its security features. The integrated circuit (IC) on this particular model is locked. This security measure is a major hurdle for many diagnostic tools currently available on the market. The IC lock prevents these tools from successfully reading or writing data to the module, making it difficult for workshops to perform essential tasks like cloning, tuning, or repairs.
OBDSTAR ECU Master will read and write this ECU.
Run ECU Master PC software.
Quich search and select ME 17.9.23 TC 1724 IC ECU.
Check bench wiring diagram.
Clean and Simple Connections: The tool is praised for its user-friendly interface and clear connection diagrams.
Simple connection setup with a "clean and tidy" pinout, making the physical process of connecting to the ECU straightforward for technicians.
Connect with ECU and read MCU ID.
EEPROM Read: The tool starts by reading the EEPROM data, a process that takes about 1 to 5 minutes.
OBDSTAR adds new OBD/bench mode support for Ford SID212 / SID212EVO/ SID213EVO ECUs on July 28th, 2026.
Added Ford Continental/Simens/VDO SID212/SID212EVO TC297 ECU
Added Ford Continental/Simens/VDO SID213EVO TC387 ECU
Technical focus
Function:
Read MAPS
Write MAPS
Checksum correction
This update applies to: OBDSTAR X300 Classic G3 with ECU license, DC706 + MPp001, and ECU Master.
Supported vehicle list:
OBDSTAR BMW B48/B58 (Bosch MG1CS201/MG1CS024) encrypted ECU unlocking feature is officially launched on July 28th, 2026.
Supports
Bosch MD1CP032 (LOCKED)
Bosch MG1CS024 (LOCKED)
Bisch MG1CS201 (LOCKED)
Diesel MD1CS089 ECU coming soon.
Here obdii365.com has collected some frequently asked questions from our customers.
Q: What OBDSTAR device supports MD1 MG1 unlocking, and what adapter to use?
A: OBDSTAR X300 Classic G3 with ECU license/DC706 + MPp001 + C4-06 adapter and ECU Master + C4-06 adapter.
Use C4-06 basic kit, no need to be full kit.
Q: Do I need to pay separately to unlock this feature?
A: As long as the device is within the subscription, this feature can be updated online for free. No separate authorization is required.
Q: ECU need to be opened?
A: Yes, need to open ECU and solder the corresponding pins, then unlock in boot mode.
Q: After OBDSTAR unlock, can the ECU be read/written with other programming tools?
A: No, it can only be read and written with OBDSTAR tools.
After the operation is completed and exited, the ECU will automatically return to the locked state.
Q: Does it support BMW ISN reading and modifying?
A: Only supports BMW ISN reading function. ISN modifying is still under development.
Now supports reading and writing ECU eeprom & flash and also does checksum correction for flash.
Q: Also unlock diesel MD1CS089 and MD1CC878 unlock?
A: Supports MD1CS089 unlock. Software is coming soon. MD1CC878 is not yet supported.
Q: Is there any special adapter for MG1/MD1 locked ECUs?
A: OBDSTAR will be rolling out wiring adapters for MG1 and MD1 over time. For now, they have a dedicated harnesses ECM-003 available for B48 and B58.
To connect ECM-003 adapter to the DC706/G3, you will need a bench converter or the P004.
To connect ECM003 to the ECU MASTER, you will need the Bench-D-V1 adapter.
Q: Need to remove resistors?
A: Yes, wiring diagram will show which resistor needs to be removed. It’s a 0.1 ohm resistor. The resistor is 0.1 ohms you can just bridge the two points if you loose it.
OBDSTAR BMW B58 ECU unlocking guide:
