Step 1: Disable Driver Signature Enforcement (Windows 10/11) Opcom uses unsigned FTDI or CDC drivers. Restart your PC and press F8 or hold Shift while clicking Restart to enter "Disable Driver Signature Enforcement" mode.
Step 2: Install the Software
Run setup_1_67.exe. Install to C:\Opcom. Do not change the directory.
Step 3: Install USB Drivers
When prompted, point Windows to the Drivers folder inside the Opcom directory. Select the appropriate INF file for your clone (usually "Opcom USB Serial Port").
Step 4: Launch Opcom Run the application as Administrator. Select your language.
Step 5: The Verification Test
Interpreting the result:
Step 6: The Burn Test If your device is verified, immediately go to Test > Test ECM. Run a full system scan. If the scan completes without USB resets, your firmware is stable.
| Checkpoint | Genuine OPCOM 167 | Suspicious/Fake | |---------------------|-----------------------------------|---------------------------| | USB VID/PID | 0483:5740 | Other or missing | | Checksum match | Yes | No | | Firmware date | Within last 2 years | Pre-2023 or inconsistent | | Response to AT+SN | Unique 16-char serial | Fixed string or error |
Version 1.67 was released by the original manufacturer (Scantool) around 2012-2013. Here is why it remains the most requested firmware:
However, the software alone is worthless if the firmware inside your interface is a mismatched version (e.g., 1.39 or 1.54 running on a 1.67 software shell). This is where verification becomes critical.
| Symptom | Verification Diagnosis | | :--- | :--- | | "Please update firmware" on every launch | PC software checksum fails; firmware bootloader corrupted. | | Random disconnections during engine scan | Incorrect config bits for oscillator frequency (should be 48MHz for USB). | | CAN modules respond, K-Line does not | Firmware was patched for CAN only; verify hex file contains KWP2000 routines. |
Subject: OPCOM 167 Firmware Verification Complete
Status: Verified Firmware Version: OPCOM 167 Date: [Insert Date]
Summary: The OPCOM 167 firmware has undergone verification testing. All primary functions and communication protocols have been confirmed operational. opcom 167 firmware verified
Verification Details:
Before verifying any firmware, open the Opcom case. Look for the PCB marking.
Print this checklist. Only tick the box if you have personally confirmed the step.
If you ticked all five, congratulations. You possess the holy grail: OP-COM 167 firmware verified. Guard that interface with your life. Back up its firmware immediately. In the dying days of K-Line diagnostics, you are holding a piece of automotive history that still works like a charm.
Disclaimer: Firmware modification and reverse engineering may violate local copyright laws. This guide is for educational purposes regarding verification of existing hardware, not distribution of copyrighted code. Always check local regulations.
OP-COM firmware version 1.67 is widely considered the most stable "original" firmware for high-quality clones using the
chip. It is the standard for users who want to avoid the issues common in "fake" Chinese versions like 1.99, which often cannot be updated or lack proper communication with newer vehicle modules. Key Benefits of Firmware 1.67
: Supports full diagnostics, including live data and actuator tests for Opel/Vauxhall vehicles from 1987 up to approximately 2016-2021, depending on the software used. Update Compatibility
: Unlike version 1.99, firmware 1.67 typically supports flash updates if your device has a genuine microcontroller. Software Support : It is highly compatible with VAUX-COM 120309a OP-COM 200603a Professional Hidplanet.lv Quick Installation Guide OP-COM 1.67 cable for diagnostics and coding Opel 1987-2016
OP-COM 167 refers to a specific firmware version (v1.67) for the OP-COM diagnostic interface, a tool used to communicate with Opel and Vauxhall vehicles. When a firmware is labeled as "verified,"
it generally means the version has been tested for stability and successfully used to perform diagnostic tasks without "bricking" (permanently disabling) the interface hardware. Key Aspects of OP-COM v1.67 Firmware Hardware Compatibility
: This firmware is typically designed for interfaces using the
microcontroller chip. It is widely considered a "sweet spot" for many users because it supports a broad range of car models from the late 90s up to approximately 2014. Step 1: Disable Driver Signature Enforcement (Windows 10/11)
: Unlike some newer, experimental versions (like v1.70 or v1.99), v1.67 is often cited in automotive forums as a stable release that avoids the communication errors frequently seen in cheaper clone devices. Functionality : A verified v1.67 firmware allows for: Reading and clearing Diagnostic Trouble Codes (DTCs). Measuring real-time data blocks (live data). Performing output tests.
Programming certain modules (like keys or service intervals) depending on the software version used (e.g., VAUX-COM). Important Considerations Fake vs. Real Chips
: Verification is crucial because many low-quality clones use "fake" chips that cannot handle firmware updates. Attempting to flash v1.67 onto a non-PIC18F458 chip will likely destroy the device. Software Matching
: To get the most out of verified v1.67 firmware, it is usually paired with software versions like OP-COM 120309a or specific 2014 Professional Driver Integrity
: "Verified" status often extends to the USB drivers. For modern operating systems (Windows 10/11), "verified" packages usually include signed drivers to bypass Digital Signature Enforcement.
OP-COM 167 Firmware: The Definitive Guide to a Verified Diagnostic Setup
If you are a Vauxhall or Opel owner who prefers DIY maintenance over expensive dealership visits, you’ve likely encountered the OP-COM diagnostic tool. However, the community is often plagued by firmware issues, "bricked" interfaces, and software mismatches.
Finding a verified OP-COM 167 firmware is considered the "gold standard" for stability and compatibility. In this guide, we’ll explore why version 1.67 is highly sought after and how to ensure your setup is reliable. Why Version 1.67 Firmware?
The firmware is the internal software running on the OP-COM interface hardware. While newer versions like 1.70 or 1.95 exist, firmware 1.67 is widely regarded as the most stable version for the "Clone" interfaces (non-genuine hardware) commonly found online. Key Benefits of Verified 1.67 Firmware:
High Compatibility: It works seamlessly with popular software versions like VAUX-COM 120309a and the 2014 database.
Anti-Brick Protection: Unlike some "fake" high-version firmwares (like 1.99), a verified 1.67 is less likely to contain malicious code that locks the PIC18F458 chip.
HSCAN/MSCAN Stability: It provides reliable communication with both High-Speed and Mid-Speed CAN buses, essential for accessing modules like the Engine, Transmission, and Infotainment. Identifying a Quality Interface
To run verified 1.67 firmware effectively, the hardware must be capable. Not all OP-COM clones are created equal. Interpreting the result:
The Chipset: A verified setup usually requires a "real" PIC18F458 microcontroller. If your device uses a "fake" chip (often marked with different numbers or featuring a smaller footprint), attempting to flash or run 1.67 firmware may result in a dead device.
The PCB Color: Traditionally, the high-quality "Op-Com New" boards are green or blue with high-quality solder points. How to Verify Your Firmware
If you have recently purchased an interface or are looking to upgrade, you can verify your firmware version using the following steps:
Connect the Interface: Plug the device into your PC’s USB port (no need to connect to the car yet). Open Diagnostic Software: Run VAUX-COM or OP-COM.
Settings/Test: Go to the "Settings" menu and click "Check Interface."
The Result: The software will query the device. A verified setup will return: "Interface Test Ended Successfully. Firmware Version: V01.67." Installation Tips for a Stable Setup
To ensure your OP-COM 167 firmware performs without errors, follow these best practices: 1. Driver Signature Enforcement
If you are using Windows 10 or 11, the OP-COM drivers often fail to install because they aren't digitally signed. You must disable Driver Signature Enforcement in the Windows recovery settings before installing the FTDI drivers. 2. Use the Correct Software
Pairing 1.67 firmware with the VAUX-COM 120309a + 131223d GB software is the most common "verified" combination. This version supports vehicles up to approximately 2014, including the Astra J, Insignia, and Corsa D. 3. Avoid Internet Updates
Never click "Update" within the OP-COM software. Genuine OP-COM software will detect a clone interface and attempt to "flash" it with firmware that renders the clone hardware useless. Common Troubleshooting
"Interface Not Found": This is usually a driver issue. Check the Device Manager to ensure the device is listed under "Ports (COM & LPT)" or "Universal Serial Bus Controllers."
"Revision B" vs "Revision D": Some newer software requires specific hardware revisions. If you get a "Version mismatch" error, you may need a specific OCDriver to bridge the gap. Conclusion
A verified OP-COM 167 firmware setup is the most reliable way to perform coding, key programming, and fault code clearing on Opel/Vauxhall vehicles without breaking the bank. By ensuring your hardware features the PIC18F458 chip and using stable software versions, you can turn your laptop into a professional-grade diagnostic station.