To upgrade the firmware of the CEC adapter to the latest version, install libCEC 6.0.2 first: libcec-6.0.2.exe (please ignore that the following screenshots show 6.0.0. The same process applies with 6.0.2)
Then click on the Windows icon, type "cec-tray" and start it.
The firmware version is displayed and the upgrade button will be enabled if it can be upgraded to a more recent version.
DO NOT UNPLUG THE ADAPTER WHILE THE UPGRADE IS IN PROGRESS!
Click on the upgrade button and wait for the upgrade to finish:
cec-tray will then reinitialise the connection and display the new version number:
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