820-00165 wont wake up after sleep.

[2informaticos]

If DP_INT_HPD remains high, the LCD is detected and PCH should maintain image and backlight enabled.

If you still get 7.5V at D7701, backlight is also enabled, but U7701 doesn't boost, for some reason.
Change U7701 and inspect its traces and surrounding components and solders.

 

[yair37]

not working, i think it something with the wakeup EN on the board..what is that line?
because if i put something between the screen to the Magnets when i close the screen i see that the screen goes black but it wake up immediately when i open it again

 

[2informaticos]

Inspect J9500 for corrosion.
Clean it anyway and check the solders.

 

[yair37]

done, but the same.. ):