Uninstall any FTDI drivers currently on your system, especially modified or “clone” drivers. Use (included in the Fantomel package) to completely remove all FTDI drivers.
This often happens with clone chips. If this occurs, try a lower firmware version (like 1.59) or verify your chip type.
Plug your OP-COM device into your computer’s USB port. You do not need to connect it to the car's OBDII port for the firmware update itself, though some users prefer it for stable 12V power.
What is the exact of the vehicle you want to diagnose? Do you know if your interface has a genuine PIC18F458 chip ? Opcom Firmware 1-67 Download
This often indicates that your interface contains a fake microcontroller (e.g., a relabelled chip or a model such as the 18F45K80) that cannot handle proper firmware updates. Once this happens, the only solutions are to replace the microcontroller with a genuine PIC18F458 (requiring advanced soldering skills) or purchase a new, trusted interface.
If you are an Opel, Vauxhall, or Chevrolet owner looking to perform advanced diagnostics, coding, and programming, you likely know the value of a solid OPCOM diagnostic interface. The is widely considered one of the most stable and reliable versions for older and mid-year models, bridging the gap between older interfaces and the need for better PIC chip compatibility.
Open your Opcom interface casing and look at the main integrated circuit (IC) chip. Safe to flash, upgrade, and downgrade. Uninstall any FTDI drivers currently on your system,
Try a different USB port (USB 2.0 is more stable than 3.0 for this).
: Ensure your OP-COM interface is connected via USB and drivers are correctly installed on your PC. : You will need the FW 1.67.hex file and the The Process Open OCflash and select your interface. Load the 1.67 hex file. Click "Flash" or "Update."
Q: Where can I download the Opcom Firmware 1.67 update? A: You can download the Opcom Firmware 1.67 update from the official Opcom website. If this occurs, try a lower firmware version (like 1
Matching the correct firmware version to your diagnostic software is essential for stable operation. The following pairing is widely recommended by forum experts: for software version , you should use firmware 1.67 . Many users also report success with OP‑COM 181022a EN (Professional edition) paired with 1.67 firmware.
If you own an Opel, Vauxhall, or Holden built between 2005 and 2015 , Firmware 1.67 is the holy grail. It is significantly more stable than the buggy 2.x versions, but offers better module coverage than the older 1.45.
On high-quality interfaces (those with a PIC18F458 chip ), firmware 1.67 can often be downgraded or upgraded to match specific software versions, ensuring connection when other versions fail.
Firmware 1.67 is often preferred because it allows the interface to bridge the gap between older software versions (like VAUX-COM 120309a) and newer professional versions. Hidplanet.lv Broad Vehicle Support:
Click the or Check Interface button to ensure the software recognizes your connected cable. Once recognized, click Write Firmware or Flash .