A2779 820-02841-A black screen but not in recovery

[thomamagic]

for info JR200 without connect :
pin 1 : 1.8V
pin 2 : 1.8V
pin 3 : 0V
pin 9 : 1.8V
pin 2 : 3.3V
pin 4 : 1.8V
pin 8 : 0V
pin 12 : 0V

 

[2informaticos]

Test external video disconnecting internal LCD.
You should get the main screen.

3V3_S2 is present?

 

[thomamagic]

That's precisely what's strange; with the screen disconnected, I don't have the main session display but the second screen of the extended display.

PP3V3_S2 is present and get 3.2V

 

[2informaticos]

Try using Command + F1 (+ Fn).