Opcom Firmware 1-67 Download !!top!! Jun 2026

| Issue | Likely Cause | Solution | |-------|--------------|----------| | | The software expects a newer version (e.g., 1.70). | Edit Opcom.ini file: add ForceFirmware=1.67 under [System] . | | Device shows as "FT232R USB UART" in Device Manager | Wrong driver or firmware not flashed. | Re-run MProg and ensure EEPROM is erased first. | | CAN bus no communication (but K-line works) | Your clone has a hardware resistor mismatch. | Open the case; remove R24 resistor (or add a 120Ω resistor across CAN_H and CAN_L). | | Interface disconnects after 30 seconds | Anti-clone timeout in the PC software, not firmware. | Use Opcom software version 201040 Modified by Team (disable online check). | | Firmware 1.67 flash fails at 50% | EEPROM write protection is enabled. | Bridge pins 5 and 6 on the FTDI chip during the flash process. |