Hello!
I have received the drive in topic for recovery (Clicking).
After replacing heads and critical FW resources backed up.
I have imaged all priority folders for the customer.
Then left the drive in the office imaging (single sector mode) for a complete image.
The second day I come to the office I found the drive spin down with no sign of life and a bunch of read error.
The drive spin up but the heads not moving from parking area then spin down.
I replaced another set of heads but the same behavior (spin up heads not moving then spin down and comes ready).

Any suggestions ?

Thanks in advance.

I think that could be an issue relative to smr T2 translators!
Have you try to analyze T2 nodes? If you notice some bad nodes you should fix T2 and then load it on ram.
You can extract (backup) T2 from module 190, then work on T2.

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My firmware database:
https://mega.nz/folder/O01DkBRI

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A backup a day keeps DR away.

That's it, heads not even moving from parking area.
I believe it's not a T2 issue related.

Could there be a problem with the VCM electronics in the motor controller?

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A backup a day keeps DR away.

OK, sorry.
Go for pcb swap then.

Strange that u ask this question here. PCB swap is a simple task for someone who has data recovery tools and knowledge for head swap and fw backup.

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My firmware database:
https://mega.nz/folder/O01DkBRI

Tried different PCB and different ROM too.
The same behavior.
I suspect critical damage to surface (Scratch).

I will examine platters.

Thanks for inputs.

Scratches on platters don't explain heads not moving from parking area.
Must be some other issue!

How have you managed surface cloning while it was working?
Have u turned off all background activity before cloning?

Something weird is going on.

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My firmware database:
https://mega.nz/folder/O01DkBRI

what do you mean with different rom?
Rom must be the original one, can't just use a rom from another drive and aspect that the it gets back to work.

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My firmware database:
https://mega.nz/folder/O01DkBRI

It's could be the calble issue, mainly for the sata power. Try different port ,new cable or external power form ATA power , if P3 was used, then maybe the power supply.


Thanks

head(s).

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Adatmentés - Data recovery

+1 heads

Ring confirmed on side (5). (I believe critical scratches prevents heads to move from parking ramp)




Heads replaced two times from two different donors with same behavior.

Thanks for your inputs.
I appreciate it.

Is there a way to FORCE the heads to move from the ramp?

there are some ways to trick the fw to think it has good heads.

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Adatmentés - Data recovery

You mean trick the ROM ?
There's no access to FW, heads not moving to read or write, sir.

The drive likely initialized when you put the new set of heads in the drive, hit the ring, killed the head. These drives if a head is dead you will get power up, spin, spin down. Same if you were to try and snip heads to image around a damaged surface. These drives are a real treat to work with.

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Remember, take your time. Be persistent. If you have doubts stop. Check, then proceed again.