Hi.
Laptop Brought for problem was showed on Picture. VGA Chipset & Flat Cable & Display LED LCD was changed by Worked one,but is same. BIOS is TRUE.
where I must dig?
what is main reason of shadowed display?

try other processor.

cpu mounted directly on board, and can not be replaced.

Hi dude. You have to replace CPU,cause such processors very unstable.

HDMI behavior is the same?

U89 (hdmi TMDS level shift) coud be overcharging CPU.

try to put it into the electric oven with 130c and 13 minutes. Sometimes it work !!! ..
But before you put it, please replace all of things such as ram, wifi card, procesor, rubbers, plastics that sticky on the mainboard. Wash it with a soap, clean it and put it into the electric oven.