I've been noting the K400 for years. Your post makes me wonder if the K400R has changed in some way or if expectations are high. That is, not all apps respond to keyboard input.
-> Here's the rub. Someone assured you that bluetooth keyboard would work. TAKE IT BACK TO THEM. Do not let them off the hook. They made this claim and need to fix it by whatever means available. I would never make this claim.
I love Samsung products, have lots. Recently we bought a new flat screen TV (UN55HU6840FXZA). I would like to use a wireless/Bluetooth keyboard with it. I own a Samsung Galaxy Tab S tablet with the Bluetooth Samsung keyboard for it. It works great, another excellent Samsung product. I wondered if I could use the keyboard with my TV. If I go through the routine of installing a Bluetooth keyboard as described in the e-manual, I can get the TV to acknowledge that it is linked to the keyboard, but the keys do nothing.
I have had issues with Samsung Chat help. When I got the TV I wanted to mirror stuff from the tablet on to the TV but could not get it to work. I had a session with Samsung Chat help and they assured me that my TV model was not capable of mirroring with the tablet. Costco tech support (bought the TV from Costco) got it working in about 15 minutes.
I went to Samsung Chat help to see if I could get my Bluetooth Samsung keyboard working with my TV. Once again I was assured that my TV model would not accept a Bluetooth link to a keyboard. When I pointed out that the Device Manager on the TV said it would, they had no comment.
So here I am. I can see that the TV acknowledges the keyboard via a Bluetooth link, but nothing happens when I touch the keys. Samsung Chat help is useless. My question is whether is it possible to use the Samsung Bluetooth keyboard I use with my Samsung tablet (it's paid for).
A satellite question. Is there an inexpensive wireless keyboard that will work with my TV? I've tried the Logitech K400r, a USB wireless device. The mouse function works fine, but the keys do nothing. Makes me wonder if the problem I'm having with the Samsung keyboard isn't the same problem with the K400 keyboard.
Any/all comments most welcome.