HDD GURU FORUMS
http://forum.hddguru.com/

Apple SSD (Samsung MZ-JPU256T/0A6) liquid damage
http://forum.hddguru.com/viewtopic.php?f=10&t=34533		 Page 1 of 1
Author:  JGAN [ November 18th, 2016, 18:13 ]
Post subject:  Apple SSD (Samsung MZ-JPU256T/0A6) liquid damage
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:
YVmrEsa - Imgur.jpg
YVmrEsa - Imgur.jpg [ 4.57 MiB | Viewed 19260 times ]
w7lWe4b - Imgur.jpg
w7lWe4b - Imgur.jpg [ 4.66 MiB | Viewed 19260 times ]
Author:  JGAN [ November 18th, 2016, 18:46 ]
Post subject:  Re: Apple SSD (Samsung MZ-JPU256T/0A6) liquid damage
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?
Author:  fzabkar [ November 18th, 2016, 18:56 ]
Post subject:  Re: Apple SSD (Samsung MZ-JPU256T/0A6) liquid damage
I believe you have correctly identified the IC. I would measure the boosted output voltage.

Attachments:
Vboost.jpg
Vboost.jpg [ 189.59 KiB | Viewed 19253 times ]
Author:  JGAN [ December 5th, 2016, 19:20 ]
Post subject:  Re: Apple SSD (Samsung MZ-JPU256T/0A6) liquid damage
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?
Author:  fzabkar [ December 5th, 2016, 19:37 ]
Post subject:  Re: Apple SSD (Samsung MZ-JPU256T/0A6) liquid damage
I'd be surprised if the difference was of any consequence.
Author:  JGAN [ December 5th, 2016, 22:01 ]
Post subject:  Re: Apple SSD (Samsung MZ-JPU256T/0A6) liquid damage
Any ideas on where to possibly go from here?
Author:  fzabkar [ December 5th, 2016, 23:27 ]
Post subject:  Re: Apple SSD (Samsung MZ-JPU256T/0A6) liquid damage
JGAN wrote:
Any ideas on where to possibly go from here?

Examine the other chips?

Look for a serial diagnostic port?

JTAG port?
Author:  Spotmen [ January 15th, 2022, 13:37 ]
Post subject:  Re: Apple SSD (Samsung MZ-JPU256T/0A6) liquid damage
Hello,

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

Thanks
Claude
Author:  suricate.ch [ February 1st, 2022, 8:26 ]
Post subject:  Re: Apple SSD (Samsung MZ-JPU256T/0A6) liquid damage
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.
Author:  suricate.ch [ February 10th, 2022, 12:59 ]
Post subject:  Re: Apple SSD (Samsung MZ-JPU256T/0A6) liquid damage
My findings to get into ROM mode but that's not very helpful in my case.

Attachments:
ROM_Mode_Apple_SSD.JPG
ROM_Mode_Apple_SSD.JPG [ 34.4 KiB | Viewed 12231 times ]
Author:  suricate.ch [ February 10th, 2022, 13:02 ]
Post subject:  Re: Apple SSD (Samsung MZ-JPU256T/0A6) liquid damage
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:
Coil_ssd.JPG
Coil_ssd.JPG [ 139.1 KiB | Viewed 12231 times ]
Author:  suricate.ch [ February 10th, 2022, 13:13 ]
Post subject:  Re: Apple SSD (Samsung MZ-JPU256T/0A6) liquid damage
What is this ? Diode ?

Attachments:
WhatsApp Image 2022-02-10 at 18.10.32.jpeg
WhatsApp Image 2022-02-10 at 18.10.32.jpeg [ 540.6 KiB | Viewed 12230 times ]
Page 1 of 1 All times are UTC - 5 hours [ DST ]
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
http://www.phpbb.com/