Do this. Unplug/remove all batteries from nearby wireless remotes/devices. Now do a factory reset on the hdtv. Next, put new batteries in your remote. See if it functions normally now.
I am trying to fix this tv. Right now, the main problem with it is that the "Home","Source", and "Settings" buttons on the remote do not work. Everything else on the remote works. The volume button works, the channel buttons work, the numbers buttons work. The arrow buttons work when the channel info pops up.
Even the "mute" button works. But if we try to press the "Home" button so that we can get bring up the Home menu, nothing happens. The "settings" button does nothing as well as the "source" button.
The power button does not work either. However, holding the power button turns the tv off and on(restarts it) and during the beginning of it turning on is when the "Home" menu or Smart Hub, whatever it is called, pops up but only for several seconds before it disappears again.
While the "Home" menu is up, I press the arrow buttons but it does not move the selector even though the arrow buttons do definitely work when using them when the channel info pops up but they dont work when the "Home" menu is up.
I have tried other remotes and they all do the same thing. I even plugged in a usb wireless keyboard and the numbers on the keyboard work to change the channel and pressed every key on the keyboard but nothing brought up the "Home" menu.
Tried using a universal remote and same thing. The same buttons on the unversal remote do the same thing. The channel buttons work but the home button and settings button dont.
Tried unplugging the tv and waiting for a minute and plugging it back in and no luck.
I already called Samsung phone support but they told me to buy a new remote but it doesn't make sense. We have another Samsung TV that uses the same remote. That other tv works perfectly fine. I took that remote and tried it with this TV and it does the same thing. The volume and channel buttons work but not the home button but when I use it back on the original tv everything works fine so buying a new remote would probably do the same thing.
Here is a link that explains the problem in my youtube video as well