Chosen Solution
Hopefully you can view the video I took. I’ve opened up the back and checked the green and yellow(ish) board. Both look good. I’ve unplugged power for hours. Nothing is working.
i don’t know if u have got tv working yet but I would say it is a back light problem because there three strap that plug in to the power board an if one of the led blow on the first strap or it could be the last one the tv will try an turn on but can’t of the light is out it will just turn straight off an go into a blink code but if it like the middle one the light will still do the same thing but it will turn on an u can get a light an shine it into the screen u will see a picture. you can try to head the main board up will a heat gun the tv mite come got that if the main board is at fault