820-02757 No video

Hello
Macbook wont show any video on screen.
  • When connected to HDMI it shows video on external monitor ONLY when the screen is almost closed
  • On the internal screen I do see backlight but no image at all (not even when moving, opening or closing the screen). With and without HDMI connected.
  • I found the LID ANGLE sensor corroded and reflowed it with no issues but the behaviour is the same
  • Even with the internal screen disconected the behaviour thru HDMI is the same
  • With the LID ANGLE sensor disconected no video at all thru HDMI AND internal screen.
  • I tried disconnecting all flexes except the screen ones (and USB C) and no video on screen.
Any help would be apprecited:
  1. I think issue should be on the lid angle sensor? Is the LID angle sensor needed to display video?
  2. Is there a way to bypass the LID angle sensor so I can test the display?
  3. How could I determine if the issue is the sensor, the screen or the board? (I dont have spare screen and sensor to test right now).
Thanks!
 
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