Remote control only on and off and half have flashing grey overlay
Mark, I am hoping you found a better solution than scrapping it. I have an LG 65EG9600 Curved OLED TV and have loved it till I had similar problems. Remote control only on and off and half would be have flashing greyed overlay on exactly 1/2 of the screen. See video attached.
@stevegowdy excellent to add images right from the beginning. Those errors are caused by errors on the LCD driver board. That is the board that is attached to the LCD panel via some very fine ribbon cables. There are certain things that could be checked if we have the number of the LCD driver board. It will not be in any service manual etc. but possibly in the LCD display datasheet. If you disassemble your unit and can get to the board post some really good pictures of it with your QUESTION. We can try and see if the datasheet etc. will be available. This is an extensive repair which will involve some rather intricate testing and soldering but can be done.