In the OP-COM community, a higher version number does not always mean better performance.
If the test fails, ensure you have installed the FTDI USB drivers correctly. opcom firmware 199 hex file top
If you are experiencing connection issues or want to optimize your diagnostic tool, avoid blindly downloading untrusted hex files from unverified forums, as they frequently contain malware or corrupted code that will destroy your device. Instead, ensure your Windows drivers (FTDI drivers) are fully updated, as driver mismatches are the cause of most communication errors—not the firmware itself. In the OP-COM community, a higher version number