.

.

fzabkar both of them are 1.78v

fzabkar both of them are 1.78v

Hello,

The PCB number tells about the board design.
However, you also have to check that the MCU (main controler unit) is of the same model.

Also, boards of the same type may have NAND chips with different capacities.
If the RAM chips are different, I would suggest that you find their datasheets and check that they well have the same capacity.

Lastly, you should also verify that the HSA (head stack assembly) controller is same.

Unless you are familiar with it, I would not play with controller commands in the terminal as you can make things worse than they are.

I would suggest contacting a data recovery lab in your country.
In Greece, you have several companies data recovery companies: Northwind.gr (Thessaloniki / Athens), Datamind.gr (Patras/ Athens), Datalabs.gr, Datarecall.gr (Athens), Enterdata.gr (Crete), TicTac.gr, ...
I don't know them all, but some of them are renowed.

_________________
Drive-for-Parts.com - donor hard drives

It appears that the 6-pin IC is a MOSFET power switch. I presume that 1.8V is the ASIC's operating voltage, in which case the power rails are OK.

_________________
A backup a day keeps DR away.

Thanks a lot. I am trying to find an exact same hdd and try my best. If I fail the next option is a recovery lab.

Thanks fzabkar. If you have something else in mind please let me know.

There is a solution, but I don't know how to implement it without PC3000. Basically, you take a donor HDD, load the patient ROM in RAM and then initialise the NAND with the T/OI1 command. Now transfer the PCB to the patient drive and it should POST with the patient's ID.

_________________
A backup a day keeps DR away.

I found in a forum few days ago someone suggesting to a guy with a similar problem to perform a secure clean ( to the nand) with seatools on a donor disk ,then transfer rom from the patient disk on the donor pcb and then transfer that pcb to tha patient hdd. Do you mean something like that?

That's something else. People report that it doesn't work for your model.

_________________
A backup a day keeps DR away.

hello fzabkar,

just to understand.
if my problem is only a bad pcb and i want to swap it with an exact same one, do i have to transfer the Nand as well on those Sshd's or only the firmware chip?