If it reads , your device can safely handle firmware flashes (assuming you use a verified, real hex file like v1.45 or v1.65).
Many sellers of these devices include a warning: “Never update online. Online updates may damage OPCOM”. Heed this warning. Do not click “Update” or “Check for Updates” in the software; the update routine will attempt to force an incompatible firmware flash, bricking your device. Opcom Firmware 1.99 Hex File
This indicates a driver mismatch or a complete lack of power to the PIC chip. Re-verify your FTDI USB drivers and ensure the vehicle ignition is turned to the "ON" position to energize the OBD port. If it reads , your device can safely
Disconnect the programmer, reassemble the interface, and connect it to your car. 4. How to Verify the Update Heed this warning