typically requires a specific PC-based firmware updater tool to install updates.
The device should enter "Update Mode." If it doesn't, check the manual for specific button combinations (often holding a specific key while plugging it in).
Within the tool, select the firmware file you downloaded. For some versions, you may need to load a system file (e.g., .bn or .bin ) followed by the OBD2 brand programs.
: Open the update software on your PC, select the downloaded firmware file, and click "Update" or "Start."