820-3437 not booting.

[BCN_Techs]

No water damage, nothing bad on board


Mains rails are ok


PPBUS, 5V and 3.3V of s5 are ok. RTC also is 3.3.


All_SYS is 0 but i cant find out why it is 0. All rails are present



SMC_LID 2,6 is ok?

 

[2informaticos]

"All rails are present"
Even VCORE???

Remove Q8150 and check again ALL_SYS_PWRGD.