820-01700 - 20v - 0.08a

[Palhano]

I'm testing with an original 140w charger. Only the board, it is stuck at 20v and 0.08v. When there is a battery, the board turns on, I feel the trackpad click and it keeps restarting.

C9522 was oxidized and shorted. but the problem continued.

It goes into DFU mode, I just tried to revive, it gave me an error.

The strange thing is, I have 0 on the PP2v5_NAND_SSD0 and in diode mode 0.400, but I have 2.5v on the PP2v5_NAND_SSD1 and in diode mode it is 0.100. I found no shorts on these lines.

Any light?

 

[2informaticos]

You've found corrosion on the SSD0 power supplies area.
That's not good at all.
There may be a bad NAND, or may have problems with U9500.
Check its signals and voltages.