Run setup_1_67.exe . Install to C:\Opcom . Do not change the directory.
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"). opcom 167 firmware verified
A: Distribution of the raw hex file is legally gray. Most GM/Opel forums do not allow direct posting due to copyright (ScanTronic owns the IP). However, communities like MHH Auto have private sections. Your best bet is buying a pre-verified device. Run setup_1_67
High for low-quality clones; flashing firmware on a non-genuine chip can brick the device. Common Issues & Tips "Interface Not Connected" opcom 167 firmware verified