You will likely need to re-tune your channels and set up your audio/subtitle options to your preference again. Note: When performing a factory reset on your Samsung Smart TV, it will take everything back to its default settings. Once your Samsung Smart TV is back on, reconnect all HDMI cables to the relevant ports and check the signal again.It should turn back on automatically so don’t press anything else. Your Samsung Smart TV will now reset itself.If done correctly, your Samsung Smart TV should have turned on and displayed a factory options menu.With the Samsung Smart TV off, locate your TV remote, press mute 1,8,2, and then the power button.Second Solution: Perform a factory reset on your Samsung Smart TV If the problem persists, try one of the steps below. It is simple, and also the most common fix that is reported to work. With any luck, this should fix your no signal error when the HDMI cable is already connected to your Samsung smart TV. Plug the Samsung smart TV’s power cable back into the wall socket.Reattach all of the HDMI cables and devices to the HDMI ports on the Samsung smart TV.Press and hold the power button on the Samsung smart TV for 30 seconds.Power off and disconnect all HDMI devices connected to tv.First solution: Unplug all devices and reset. Press ‘source’ on your remote control to select the connected source device.Check the settings of both your source device and your Samsung Smart TV, you may have it set up wrong or accidentally changed it.You can also disconnect and check inside the end of the cables and ports to make sure there is no visible internal damage. Check that the HDMI cable is properly connected and undamaged.But why does it happen? And how can we fix it? In this quick and simple tutorial, we will walk you through the process. It can be incredibly annoying to get the no signal error when your HDMI cable is already plugged into your TV.
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