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Black screen ON 49NU7300 49" 4K UHD Curved Smart TV With HDR

My son purchased this TV on 20/06/19 and now, just out of warranty it has got a black screen on the left hand side as you view it. Judging by the amount of people with the same issue it seems that this is a common problem. He purchased this as a long time user of Samsung products, based on customer reviews at the time. You would expect better from a organisation the size of yours. He is autistic and TV is a major part of his life/routine. Can you do something to rectify this ASAP?

Kind Regards 

Stephen Evans

On behalf of my son, Daniel Schurian

Samsung Moderator
Samsung Moderator

Re: Black screen ON 49NU7300 49" 4K UHD Curved Smart TV With HDR

When your TV has a black screen even when it's on, it's quite possible it could actually be your external device and not your TV. If your TV is connected using a One Connect Box, there are a couple of extra steps to troubleshoot.


  1. Tv without the one connect box has no picture

·Press the Home (Menu) button on the remote.

  • If the menu appears, the TV is powered on but is either not on the correct source or not receiving a signal.
  • If the menu does not appear, the TV may be having power issues. 

Confirm the TV is set to the same source as the external device.

  • For instance, if your cable box is connected to HDMI 1, set the TV source to HDMI 1.
  • If the TV is set to the correct source, but there is still no image, unplug and reconnect the AV connections one cable at a time, from both ends of each cable. If there's any damage to the cable, it will need to be replaced.

Test the HDMI cable.

  • To perform the test, make sure the TV's source is still on the HDMI setting for the cable you want to test, and then navigate to Settings > Support > Self Diagnosis > Signal Information > HDMI Cable Test > Start Test.

Test different external devices.

  • The final thing to rule out is the external device you're using. Try connecting a different device, or using a different source port. If you were unable to test the cable in the previous step, then try swapping the cable, too.
  • If the TV can display a picture in any other setup, then you've ruled the TV out as the cause of the issue. Keep trying various setups until you identify the device or cable that is not working, and troubleshoot or replace it.

After completing steps and the issue is still occurring, please feel free to send me a private message with your full serial and model number. 

Be sure to click " ✓ Accept as Solution" when you find an answer that works for you.