There are probably 12 or so available Logitech downloads and it's not clear which ones are needed to get a specific piece of hardware functioning. And the 'Logitech firmware update' which recognized the Unifying receiver and reported a successful firmware update.
I say 'appears' because it is the only download that lists 10.15 as an available Mac OS version. Then reinstalled what appears to be the most recent Logitech drivers for Mac: 'Logicool'. Apparently several versions were present and some dated back to 2015 or so. I completely uninstalled all Logitech software, preference panes, and the like. Mac mini late 2012, Logitech wireless keyboard 800 (Unifying receiver, not Bluetooth)īackground (in case any Logitech engineers/experts are out there): Catalina installed without a hitch but my Logitech problem is a bit subtler.
