Macbook A2289 Water damage s0 state?

[Extreme]

Hello,

I have been working on a Macbook Pro A2289 board number 820-01987-A for the past few days. I have found this problem quite strange, and I can't see how to sort it out according to my knowledge.
The MacBook arrived with water damage. It was not too much, but it got to the board and affected some components on PP3V3_S5, I have replaced all the resistors with the according value, and the machine is taking 20v and 0.200 amps without the battery plugged in, with the battery taking 0.533 amps (battery is probably full), it does not make any power on chime the fan spins, it looks like it is on but not displaying anything, tested already with a known good screen,
I have also booted it to DFU mode. I tried to revive it, and it showed that it worked; after completing the process, it showed the locker square image, but there was still no display in the apple configurator the status was showing booted.
It is the same on the external screen.

All power rails are measured and good.

Is there any advice on what I should check to fix the issue?

I also have attached a photo with the components affected.

I really appreciate any help you can provide.

 

[2informaticos]

Compare diode mode readings on all coils with good board; or at least with reference table.
Tell us which big coils get voltage.

 

[Extreme]

Hello, I have compared the diode mode reading on the coils and is very alike a working board.
I changed the 2 x u7710 and u8110 just in case.
I connected to dfu tried revive again now I see the battery is charging and takes around 2.5 amps,
While charging, I looked around the board with the thermal camera, and I saw F3001 getting a bit hot; then I checked the voltage on both sides, and it is 18.66. Is that correct?
The CPU it is a bit worm like would be on but still no display or sign of life.
I disconnected the keyboard and trackpad, and it takes 1.1amp on the power supply, then went back to 0 again and again.
If I connect the charger, the fan starts for 2 seconds then stops.
Is there any chance Y1900 will cause this problem as it was beside the affected corroded components?

Any better advice you could give me, please?

Thanks

 

[2informaticos]

"Tell us which big coils get voltage"
???
Any voltage appears on CPU core?

 

[Extreme]

Hi, here is the voltages I get:
L7670 5V
L7690 3.3V
L7030 12V
L8100 1.2V

Actually, sorry, you are right. I am missing voltages on CPU core
L7270 1V
L7210 0v
L7220 0V
L7420 0V
L7410 0V
L7702 0V
L8102 0.073V

 

[2informaticos]

You may have some traces, or components affected by corrosion; CPU related.
Possibly accumulated crap underneath CPU too.

 

[Extreme]

Very helpful.