Open Opcom software → "Settings" → "About." Look for HW: Opcom, FW: 1.99, BL: 1.0 .
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If you have flashed the HEX file but the interface still fails, here is the expert checklist: Open Opcom software → "Settings" → "About
Opcom 1.99 requires a specific USB-to-Serial driver. If you use Windows 10/11’s automatic driver, the HEX file upload will succeed, but the software will crash when you try to read an ECU. If you share with third parties, their policies apply
If you have a confirmed flashable board, the general procedure is: Connect the device via USB (ensure drivers are installed). Use a tool like OP-COM FW Loader
This is the highest stable peak for clone hardware. It provides the best possible module coverage for vehicles up to roughly 2014–2015 without risking data corruption during programming tasks. Summary Verdict