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Given the flood of counterfeit interfaces on the market, taking the time to is not optional – it is essential for safe, accurate vehicle diagnostics. A fake device may seem like a bargain, but the risks include bricked interfaces, misdiagnosed faults, and even permanent damage to your car’s electronic modules.
If your device fails verification on 1.67, and you cannot reflash the PIC with a verified hex file, buy a new interface from a seller that explicitly advertises "1.67 Firmware Pre-Verified."
Firmware version 1.67 (often written as fw1.67 ) stands as the final and most stable official firmware release for the OP-COM system. According to numerous community experts and diagnostic professionals, the maximum official firmware version is 1.67, which corresponds to the last software release from around June 2020. Unlike the numerous counterfeit versions that appeared later (such as 1.70, 1.78, 1.85, 1.90, 1.95, and 1.99), version 1.67 is legitimate and represents the end of the line for official OP-COM development.
If you are using Windows 10 or 11, the OP-COM drivers often fail to install because they aren't digitally signed. You must in the Windows recovery settings before installing the FTDI drivers. 2. Use the Correct Software
