820-00165 Doesnt Boot. Green Under SMC

[2informaticos]

Check diode mode to ground on that corroded line.
Be sure R5117 has correct ohm value; it requires 3V42 presence on the other pin.

Did you resolder correctly SMC?
Use leaded paste for balls.

Check if machine starts in SMC bypass.

 

[2informaticos]

Do you get voltage on CPU core coils?
PLT_RESET_L comes high?

Inspect for corrosion all SPI Bus Termination resistors and their traces.
Clean J6100, if needed.

 

[Instafixx]

Removed the SMC and checked all the PADs. The top 3 lines diode mode readings are totally out of range barring 2-3 pads.

Example
SMC_OTHER_HI_ISENSE is 0
SMC_CPUVR_ADJUST_ISENSE is 7.7.
SMC_TDO is 2.7

The upper portion of the SMC had the green corrosion.

Do we have to reconstruct all these traces ?

 

[2informaticos]

Rebuild all traces and check all components connected on them.