In service menu I changed the upside down image. I have no image in either external scart / video on stick / browser / tv etc.
The display is LTJ400HV05-C
Bn96-21758a 40" 6.5k (2)
In service menu there are only the following 40" models. From what I`ve read here, I should choose a 40A..... type, but there is no image with either them.

The original board of the tv it`s:

Do I have any chance to make it work ?