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This is with DFU mode, both ways it goes with KB buttons and with short on SKW003, and it comes to this

Yes and it says Apple controller booted but no picture

I tried this file and another 3 , but only with the Original file goes up to 20v

Just to recap... The laptop goes to 20v and also goes to DFU mode, that was before I reprogrammed it. I will change the file again and revert

I reprogrammed it but now it's stuck on 5v. Not sure if the file is the correct one.

U4770? bios you think got corrupted and not showing picture because of it?

All components are fine and checked. What do you mean flash SoC rom?

I rechecked also the voltages going to the SSD and they are all present as they should be

When I try to restore it It says State Booted as shown on the uploaded picture A2141 SSD 4, but nothing happens just stays like that no picture not taking power more than 5v, and if I remove the restore cable that goes to the working Mac it's gonna try to boot gets 20v but stays 0.30a

I also tried to restore it, still didn't work

I went to DFU restore with shorting out SWK003

Hi. I'm back on this one. I received the SSD chips. 6 x 128GB TSB4228. In the package, they sent 6 chips of which one was from a different spot. I first tried to solder them as they were from the spots where they came from since the supplier advised us like that, but it didn't work. Then I...

It turned off once with the battery plugged in, now I unplugged it works fine. I'll test it for some time and revert

Hi. I have this board 820-00928 it was not powering on, and it was full of dust. I did the cleaning and at first, it didn't turn on, but then it started. I did the usual check on all power lines and on a few, the diode mode measurements are lower, but it still powers on. I found on QB701 Pin 1...

I received the programmer, waiting for new NANDs, I'll update you with the results since I also have another A1990 4 NANDs config that I need to replace :)

I replaced J5250 and it started working, which is funny cause I already had the voltages correct. After a few days of testing, all seems fine :) Thanks for the assistance :D

Surprise! I have a backlight when the board is out of the housing 🥳 J5250 making the issue?

btw I checked SMC_LID right away at the beginning of the repair and it was 3.4v

Yes both sides it's good. I resoldered U7701 just to be sure and I replaced D7701 also, still the same. J5250 had some liquid damage, possible issue?

R7780 it's good