How to pair more than one device with a Logitech receiver
Logitech mouse firmware update? - Windows 10 Forums
Marcus Mengs on Twitter: "2) Requirements: - Logitech Lightspeed dongle to dump the intended firmware from (R500/ SPOTLIGHT work too, but have no advantages over Unifying) - Logitech Unifying dongle with TI
C-U0007 firmware 012.010.00032 dongles does not accept encrypted keyframes · Issue #1 · bilogic/logitech-unifying-device · GitHub
The completely counter-intuitive way of deleting a device from Logitech Options | ZDNET