[Help] ST500LM000 - not recognized

[Pak1]

Hi all,
I hope you can help me to solve the problem that I have with this hd.

ST500LM000 SSHD 500GB 8GB NAND 5400 rpm

SN: W766H RW3
PN: 1EJ162-076
FW: LVD5
board ver: 100731589 rev A

The motor spins up and it can be hear only one click of the head.

I tried to change logic board with donor board. I swapped bios ic but no success. With donor board the disk is completely dead no motor spin up, no click.

The two board (patient and donor) only differ for NAND chip as you can see by the image attached (on the right the patient board)

Any suggestion?

Thanks in advance.

Attachments

[michael chiklis]

Forse questo thread potrà aiutarti
viewtopic.php?f=1&t=35895&p=251230&hilit=sshd+nand#p251230

Tanto per cominciare, hai l'adattatore seriale per vedere cosa dice l'output a livello terminal al momento dell'accensione?


Perhaps this thread will help you
viewtopic.php?f=1&t=35895&p=251230&hilit=sshd+nand#p251230

To begin, do you have the serial adapter to see what the terminal-level output says at power-up?

[Pak1]

Many thanks for interesting.

I do not have serial adapter. Could you suggest me anything suitable to buy?

[COD]

Pls send ful details patient and donor drive , but if the drive spin up it is not the electronic board issue

[laptokowiec]

probably it's not pcb problem

[Pak1]

Hi all,
with an arduino uno like an RS232 adapter and Putty @38400 baud rate I receive this on startup:

Boot 0x40M
Spin Up
RECOV Servo Op=0100 Resp=0005
Trans.

[Pak1]

Please, nobody can help me?

[pcimage]

You say “click of the head”....

Could you record and post the sound?

It’s 99.9% not a PCB issue.

[Pak1]

Attached, the sound.

Attachments

hdmik.zip

(47.83 KiB) Downloaded 435 times

[pcimage]

Sounds awful to me, don’t power it up anymore.

Horrible scraping noise.

[mhp666]

In my opinion the heads are wrong and almost certainly damaged the surface.
The subject seems quite complicated and with partial data loss very very likely.
That disc as @pcimage says the more you turn it on the more it will be damaged, in principle, but until there is nothing there is sure.

[Pak1]

I'm newbie so I can't evaluate the sound.
In my opinion I hear the motor spin up and the head that try to read something and go back to parking pos.

However, I'm trying to understand and I would know:

1) why when I put donor board with patient bios ic the motor doesn't spin up? The donor board is faulty?
2) The donor board with its bios show T> terminal. The patient not. Is it possible that the patient bios is corrupted?

[pcimage]

This is a SSHD, not a “normal” drive.

Not a good drive to be working on if you’re a “newbie”, sorry to say

[COD]

Olso think it is the head defects and can be platters degradation. I think You need profesional help for this HDD.