I successfully connected my K600 keyboard to my TV (Samsung SmartTV) after the first firmware update (needs to be connected to a computer). The mouse pad only works on the Internet tab. There is no mouse pad function on the YouTube tab, but typing works. Typing and mouse don't work anywhere else. Logitech offers a page where you should be able to make some changes to the keyboard, but that doesn't work either. In particular, on Samsung TVs, the button does not respond at all. Something happened to this company and it's not good. Incidentally, the K400 Plus does not perform quite as well as the significantly more expensive K600. So if all you need is a keyboard to navigate the internet on your SmartTV, then the K400 Plus is your best bet.
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