The original manufacturer of Opcom (Vetronix, later Bosch) no longer supports this device. Therefore, downloading firmware 1.67 is in a legal gray area. Use only for educational or vehicle ownership purposes.
The most straightforward method is to use a software package that includes a “firmware updater”. When you launch certain versions of OP‑COM (e.g., the 200603a collection), the program may automatically flash the correct firmware version to your interface if it detects that the current firmware is outdated or mismatched. However, this automatic update will only occur if the software is programmed to do so and if your device is compatible.
Opcom (also known as OP-COM) is a powerful diagnostic software and hardware suite designed specifically for GM group vehicles, including Opel and Vauxhall. It allows users to perform professional-level tasks such as reading and clearing fault codes, viewing live data, performing output tests, and even coding new components.
Because Opcom is a proprietary tool, official firmware downloads do not exist for clone devices. You must rely on trusted automotive community forums (such as MHH Auto, Digital Kaos, or specialized diagnostics blogs) to obtain the files. Required Files Checklist Opcom Firmware 1-67 Download
Opcom is a low-cost diagnostic interface used for Opel/Vauxhall vehicles that connects a PC to the car’s OBD-II port. Firmware version 1-67 refers to a specific release for the Opcom device that some users seek for compatibility with certain PC software and vehicle ECUs.
Disclaimer: Firmware flashing carries inherent risks to the hardware. Always use caution, ensure the PC has a stable power supply, and verify that the files are correct for the specific hardware revision. Modification of vehicle software should only be performed by those who understand the risks involved with automotive electronic systems. Share public link
: This is critical for Windows 10 users. Go to Settings > Update & Security > Recovery > Advanced Startup and select "Restart now". The original manufacturer of Opcom (Vetronix, later Bosch)
It offers a highly stable connection with reduced communication dropouts compared to older versions like 1.45 or unstable newer beta versions.
is considered one of the most stable and reliable versions for PIC18F458 based clones. It bridged the gap between older, less stable firmware (like 1.39 or 1.45) and newer, often incompatible versions (like 1.70 or higher), which sometimes "bricked" cloned devices. Key Benefits of Upgrading to 1.67
Click on and browse to the location of your downloaded OP-COM_Firmware_1.67.hex file. The most straightforward method is to use a
⚠️ – Incorrect firmware can cause wrong voltage on OBD pins, potentially damaging ECUs.
Do not unplug the USB cable or close the software during this process. The LED on the interface will flash rapidly.