So I have a Sharp 50LE580X to be exact and wanted to know if the Logitech K400 would work with it, because I didn't get the "nice" remote and just the basic one which makes typing a real pain in the neck. If not the K400, then what's a guaranteed compatible keyboard+mouse combo?
My logitech dinovo mini worked fine on my shield tv 2017, except only one minor thing.
I had to install external keyboard helper app from the store, to be able to use Scandinavian ÅÄÖ letters at all.
However that most likely isn't going to be issue for you, so other than that I only needed to plug that USB transmitter thing and it started to work instantly.
K400 worked for me for all Android boxes.. So I think it could work for this too