Apple SSD (Samsung MZ-JPU256T/0A6) liquid damage

[JGAN]

Have an SSD from a Macbook Pro here that just gets hot and isn't recognized. Model is Samsung MZ-JPU256T/0A6. It went through ultrasonic cleaning already.

Attached are photos of an IC and area where I noticed corrosion. The IC is marked:

Code:

PSRI
4AK
A7HE


I believe it is this: http://www.ti.com/lit/ds/symlink/tps61086.pdf

Can anyone confirm this for me? None of those caps are short. Not too sure where to start otherwise.

Attachments

[JGAN]

Also are the flex cables for M.2 or Apple SSD so that you can probe both sides of the board while its plugged in?

[fzabkar]

I believe you have correctly identified the IC. I would measure the boosted output voltage.

Attachments

[JGAN]

I'm getting 11.95v. Known good measure 12.43v. Resistance to ground measure about the same, so I don't think it is short -- but would .5v be enough to make a difference?

[fzabkar]

I'd be surprised if the difference was of any consequence.

[JGAN]

Any ideas on where to possibly go from here?

[fzabkar]

Any ideas on where to possibly go from here?

Examine the other chips?

Look for a serial diagnostic port?

JTAG port?

[Spotmen]

Hello,

I have a similar case. Where you able to recover data ? VBoost is 12.45V on mine.

Thanks
Claude

[suricate.ch]

I got two like this. Power looks ok, they got DRD- DSC but then get BSY as soon as I try doing something. One had liquid, the other one was working with USB adapter and stopped working.

[suricate.ch]

My findings to get into ROM mode but that's not very helpful in my case.

Attachments

ROM_Mode_Apple_SSD.JPG (34.4 KiB) Viewed 11737 times

[suricate.ch]

I've been looking at the board the only suspicious components I can find is this coil, It's open with probe on each side.

Attachments

[suricate.ch]

What is this ? Diode ?

Attachments