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 Post subject: WD DC HC550
PostPosted: February 9th, 2026, 15:04 
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Joined: February 9th, 2026, 14:58
Posts: 5
Location: Europe
Hi friends,
i have a 16TB HC550 fw. ver. PCGNW870. The drive is according to wdckit in "unretrievable" state. I cant get any more info, firmware update fails instantly too. Is this drive repairable or not? It does not click or make any noises, just some very short rw noise occasionally. Would someone be so kind to help me atleast diagnose what kind of failure it has?

Best regards


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 Post subject: Re: WD DC HC550
PostPosted: February 9th, 2026, 20:24 
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Joined: March 8th, 2025, 18:07
Posts: 111
Location: Canada
Try a USB enclosure and see if the disk is available that way. Try a Windows laptop and see if it can recognize the disk. It is possible that the file system is corrupted as well.

I use server disks in my shop so I have some experience.

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Orico DS500C3-US-BK 5-disk 3.5" SATA, iTGZ 4x M.2 2280 Thunderbolt enclosure NVMe/SATA, etc. etc.


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 Post subject: Re: WD DC HC550
PostPosted: February 9th, 2026, 23:20 
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Joined: September 8th, 2009, 18:21
Posts: 16960
Location: Australia
Can you retrieve a SMART report?

https://ww.reddit.com/r/datarecoverysoftware/wiki/index/smart/

If not, then the drive most likely has a head/media/firmware fault.

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A backup a day keeps DR away.


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 Post subject: Re: WD DC HC550
PostPosted: February 10th, 2026, 4:38 
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Joined: February 9th, 2026, 14:58
Posts: 5
Location: Europe
Hi, smart data are unreadable, but the wdckit log revealed an errror FFh and Status 2Fh. The physical media is inacessible.


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 Post subject: Re: WD DC HC550
PostPosted: February 10th, 2026, 8:55 
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Joined: February 9th, 2026, 14:58
Posts: 5
Location: Europe
Quote:
but the wdckit log revealed an errror FFh and Status 2Fh. The physical media is inacessible.

edit: The error is not 2Fh but 2h.


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 Post subject: Re: WD DC HC550
PostPosted: February 10th, 2026, 14:36 
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Joined: February 9th, 2026, 14:58
Posts: 5
Location: Europe
Ive installed hugo, and checked if the sanitize is in progress but its not running, but ive managed to get a binary log, will someone help to diagnose, whats happened?


Attachments:
4ZH61UUV_10022026_181103_smrbin_3.3.1.0.zip [918 Bytes]
Downloaded 21 times
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 Post subject: Re: WD DC HC550
PostPosted: February 10th, 2026, 14:56 
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Joined: September 8th, 2009, 18:21
Posts: 16960
Location: Australia
The log contains the result of the Identify Device command. I suspect that this info comes from the PCB rather than the platters.

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A backup a day keeps DR away.


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 Post subject: Re: WD DC HC550
PostPosted: February 10th, 2026, 15:04 
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Joined: February 9th, 2026, 14:58
Posts: 5
Location: Europe
Any other logs are failing with error -65538


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 Post subject: Re: WD DC HC550
PostPosted: February 10th, 2026, 17:00 
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Joined: September 8th, 2009, 18:21
Posts: 16960
Location: Australia
It sounds like there is no access to the "discware" area on the platters, in which case there is probably no DIY solution for you.

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A backup a day keeps DR away.


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 Post subject: Re: WD DC HC550
PostPosted: February 10th, 2026, 17:48 
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Joined: March 8th, 2025, 18:07
Posts: 111
Location: Canada
I suspect that the disk has failed which is unusual with server disks.

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Orico DS500C3-US-BK 5-disk 3.5" SATA, iTGZ 4x M.2 2280 Thunderbolt enclosure NVMe/SATA, etc. etc.


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 Post subject: Re: WD DC HC550
PostPosted: February 10th, 2026, 22:42 
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Joined: November 24th, 2011, 21:48
Posts: 214
Location: Canada
If discware, and if you don't have pro tools I'd be curious if a format w/Hugo would restore the translator and give you UA access.

I cannot recall if SMART needs to work - I forget as PC3000 added the function natively:

Code:
f -s SERIALNUMBER --fastformat
*serial number must be in caps.

Not like you have anything to loose if you're not pursuing pro DR.


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 Post subject: Re: WD DC HC550
PostPosted: February 10th, 2026, 23:42 
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Joined: November 24th, 2011, 21:48
Posts: 214
Location: Canada
Just digging up some previous cases at our lab for you; SMART did NOT work.
This is prior to PC3000 supporting translator rebuild on these models.

ABR on all sectors.

That said, without diagnostic output you certainly could have a heads issue / SA damage.


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 Post subject: Re: WD DC HC550
PostPosted: February 13th, 2026, 11:10 
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Joined: March 8th, 2025, 18:07
Posts: 111
Location: Canada
I have the 18TB version of the HC550. My disk is the WUH721818ALE6L4. SMART works fine on my hard disk. If SMART fails I suggest wiping the disk with Seatools and then try again. The HC550 are older model disks and my disk is real old by server standards.

I keep my disk in a USB enclosure and it has racked up 30,000 hours as it is on 24/7. Many other disks have even more hours.

_________________
Orico DS500C3-US-BK 5-disk 3.5" SATA, iTGZ 4x M.2 2280 Thunderbolt enclosure NVMe/SATA, etc. etc.


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