Common error messages on Samsung TVs

Samsung TVs can occasionally encounter errors that pop-up on the screen and hinder a user's ability to access certain features. This guide will cover the most common issues and provide the solution needed.
Samsung TV screen displaying an HDMI 2 no signal message with options for Connection Guide and Source.
Samsung TV screen displaying an HDMI 2 no signal message with options for Connection Guide and Source.

Common error messages on Samsung TVs

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Someone already registered this device error when adding TV or projector to SmartThings
Someone already registered this device error when adding TV or projector to SmartThings
If your TV, smart monitor, or projector is still registered to an older SmartThings account* or if you accidentally added it to the wrong account, you can easily reset it and transfer it. All you need to do is add the TV/projector to your new account and the SmartThings app will take care of the rest for you.
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TV or projector does not show up during SmartThings discovery process
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 Samsung TV has no picture or a black screen
Samsung TV has no picture or a black screen
If your TV or Odyssey Ark gaming screen is turned on and is producing sound but has a black screen, the issue could be with your external device and not your TV. For instance, if your screen uses a One Connect Box, which allows you to connect multiple external devices, there are some troubleshooting steps you can take to solve the issue. If it isn'
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