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
What of Opel/Vauxhall are you trying to diagnose?
Try using on old forum threads, or search for "Opcom 150317a full package".
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Opcom Firmware 1-67 Download
Unlike some newer "fake" versions (like 1.95, 1.97, or 1.99) which may be locked or based on older 1.41 chips with faked version numbers, genuine 1.67 interfaces often support up- and down-grading to different firmware versions using tools like Stability:
Specifically optimized to prevent bricking on high-quality clone interfaces using the Microchip PIC18F458 chip. Core Features and Capabilities
⚠️ – You are on your own. No warranty. Because Opcom is a proprietary tool, official firmware
Known for fewer connection drops compared to older versions like 1.59 or newer, unstable versions like 1.99.
Go to Control Panel > Programs and Features and uninstall any older Opcom software. Remove existing USB drivers via USBDeview to avoid conflicts.
: Supports diagnostics for Opel, Vauxhall, Holden, and Chevrolet vehicles. Try using on old forum threads, or search
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This article provides a complete overview of the 1.67 firmware, why it is essential, and how to safely download and update your interface. What is OP-COM Firmware 1.67?
Run Opcom Software Suite 1.67 Setup.exe as Administrator. Accept the default installation path ( C:\Program Files (x86)\Opcom\ ).
Opcom Firmware 1.67 is the microcode that runs directly on the PIC18F458 microcontroller chip inside your physical Opcom OBD2 adapter. This specific version acts as the bridge between your car's Electronic Control Units (ECUs) and your Windows computer.
| Feature | 1.45 | 1.67 | 1.79 | 2.0+ | |---------|------|------|------|-------| | Clone-friendly | ✅ Excellent | ✅ Very good | ⚠️ Unstable | ❌ Poor | | ECU Flashing | ❌ No | ✅ Yes | ✅ Yes | ✅ Yes | | Key programming | Basic | Full | Full | Requires online token | | 2010+ model support | ❌ | ⚠️ Partial | ✅ | ✅ | | Windows 11 support | ⚠️ | ⚠️ | ⚠️ | ✅ | | Offline operation | ✅ | ✅ | ✅ | ❌ (some features) |