Samsung 43 this could be a very common fault 

6:20 It is always easier to disconnect all the cables before loosen the board from the chassis.

Love your raw content . Sounds like My Mate Vince wants and all

A selection of sticky colour dots may help, red for suspect board, yellow for new / swapped-in board, green for tested ok, black for finger trouble etc

Sammy make great screens.

Hi Allen, I have checked my board stock but unfortunately not got the board either. I hope you’re lucky to get one in due course. After reading the comments have you tried doing as suggested and if so did it rectify the issue? Best regards, Brian 👍👏🏴󠁧󠁢󠁷󠁬󠁳󠁿👍👏🏴󠁧󠁢󠁷󠁬󠁳󠁿

Wow an actual Samsung Tv that actually doesn't have a screen fault, I'm really shocked!!

Allen this guy could be right I have seen this before 👇👇👇👇👇

Hello! Do you have any Phillips tv to repair? Are they tv's with no faults?

hi allen how are you.big fan of your work its Granville from South Africa have you maybe try doing over the firmware,maybe its corrupted.

I've had the same problem on Samsung tvs and rectified by making sure deep colour 4k is off

regards, m8. 😎

You have to turn off the deep colour 4 k in the menu off so it goes back to normal and the hdmi will work

At 18:31. Nice belt lol?

If you are using a 1080p source you need to turn off 4k deep colour

It's just panel changing I thought you was a repair person