Controlling Samsung qn800a tv from smartthings

I have a 2021 Samsung qna800a tv. This is supposed to be controllable from smart things and it is to an extent.
The issue is that when it is switched off (but still powered) the device in SmartThings shows as offline and can’t be switched back on.

I have enabled the turn on via mobile settings as described here but it makes no difference

I’ve noticed that it’s sometimes possible to switch the tv on with SmartThings very shortly after it’s been turned off.
So I expect there is a timeout somewhere where the tv goes to sleep and doesn’t respond to anything other than the remote for the tv.

I’ve done the usual googling but can’t find any solution. So asking here

  1. anyone else have the same issue
  2. anyone know of a solution?

Anyone have same issue or a solution?

All Samsung Tvs have that issue for the last 5 or 6 years, the latest app update available on Android Galaxy phones might have fixed it but i have not had time to thoroughly check

Luckily my Tv was off at home and has been for approx 10 hours, turned on and off no issues so the preliminary finding is… it is fixed using the latest Android Galaxy ST app update

Now the wife will think there is another ghost in the house :ghost:

If you see this screen when you tap your Tv device page you have the latest Tv integration

I have latest version of SmartThings on android s23 ultra. Tv still shows as offline and won’t turn on via app :worried:

Is the latest version of the Smartthings app, is that what you have ?

Yes, that is the version I have.

Tv has been off about 12 hours.
When i look at it in smartthings it still shows as offline. I get thjs screen when i tap on the tv icon in smartthings

At this point i am out of ideas, the on off game has been an issue for years and with the latest vetsion of the app it appeared to me to be fixed

@AlejandroPadilla might be able to look into the issue, as far as i can see your Tv is completely compatible

Sit tight and hopefully Alejandro will be able to help


Out of interest is your tv networked via wifi or ethernet? Mine is via ethernet. I would of thought ethernet would have been the more likely of the two to work though.

Hi @Declankh please, Can enable the support access? to check it. also if you can replicate the issue and sent me the time/date and your timezone it can help us :saluting_face:

  1. Confirm the email account registered in the forum is the same one you use for SmartThings. If not, please share it with me over DM.
  2. Enable support access to your account:
  1. Go to the SmartThings Web (
  2. Log in to your Samsung Account
  3. Select Menu (⋮) and choose Settings
  4. Toggle on Account Data Access
  5. Select the time period and confirm - In this step, please select “Until turned off”, once the team finishes, we’ll let you know so you can disable it again.

Ethernet but it should not matter

If you follow Alejandros instructions he is able to look into your issues in detail

like you 99% of us here are just users helping users and this forum was setup for just that

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Update on this:
Over the last 48hrs my Samsung tv has NOT gone offline like it usually does after a few hours and I have been able to turn it on via SmartThings.

Further the SmartThings app Has not updated in the last few days but I see that it now provides a TV control in the status pulldown.

My Samsung tv updated firmware to 2141.2 about a week ago but the current working state does not align to that firmware update.

It might be premature to call the problem fixed but I’m hoping it continues to work.
What puzzles me is I haven’t changed anything and neither the TV firmware nor the smartthings app version have updated at the change in behaviour.

Anyway, fingers crossed that the problem is now gone.
I’ll report back if anything changes again in this regard

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I may have spoken too soon on this .
Tv is offline again tonight. Only an hour or so since it was online.
Very frustrating especially when the tv is connected via Ethernet , you’d think that’s the least likely to go offline.

Update on this. I raised a case with Samsung and they suggested I connect the tv over Wi-Fi instead of Ethernet. I was somewhat sceptical this would make any difference but it actually does. I’ve been using it over Wi-Fi for weeks now without it going offline.
The downside is that I’d much rather stream 4k or even 8k video over Ethernet, but it’s not causing an issue at the moment.

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