WD MYCLOUD NAS hard drive won't turn on

Hello
Indeed, the device seems to be dead. But what about whether it’s the controller board or the hard drive?
So you need to open it up to see what's inside and try to extract the HDD to test it if you have the knowledge to do so.
If the HDD is SATA, yes of course it can be reused in a case with the same SATA standards, but it would be wiser to test it before purchasing a case, considering the risk that the said HDD might already be dead.

Hello,
Thank you for the reply.
I have disassembled the whole unit, which is very easy. Visually, the PCB is in good condition. But indeed I do not have the ability to test and find out where the fault lies.

To test the hard drive, I ordered a SATA enclosure for 3.5-inch drives up to 10 TB, which I should receive tomorrow. Double benefit: testing and free return of the enclosure if the hard drive is indeed defective.

I will be sure to provide feedback on the result obtained.

Have a nice weekend.

OK.
Let's keep our fingers crossed that the HDD is working.
It might need to be formatted because the NAS system is sometimes different from a PC.

Hello,
I just received the enclosure, I'm disheartened, it doesn't work. The hard drive installed in the enclosure, the indicator light flashes and then goes off. When connected to the PC, it is not detected.
It's surprising, both the HDD and PCB at the same time? Since the last normal use, nothing unusual happened.
So I'm stuck, facing the prospect of losing 3TB.

OK, the HDD is dead too.
I was almost sure of it, that's why I said it needed to be tested and it's done.
I hope you don't have only this disk as backups, otherwise you're going to cry over the 3 TB lost. Never trust a computer product because sooner or later, it fails, hence the need for multiple backup media.
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Backups are based on the minimum principle of 3-2-1. Check online what that means.

Yes, indeed, if I had lost 3TB of beautiful personal data, I would have fainted! Fortunately, I have two other external hard drives where I backed up my thousands of photos, videos, and other documents.
So my NAS is dead, destined for the trash.
Isn't it surprising that everything is broken? Right?

Nothing surprising.
Sometimes it's just the controller board or the HDD, sometimes it's both at the same time.
But are you really sure that the controller board is faulty?
The only way to find out is to put an old functioning HDD in to check, but be careful, there is a risk, if the board is short-circuited, it will destroy the HDD.
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And I am reassured by the fact that you had several backup devices. The pain will be lessened, it's only the loss of the NAS and not your personal data, and for 3 TB, that's quite a lot of memories.
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Now the question is whether the NAS is still under warranty? Its age? The cost of any potential repair? In short, parameters that you need to analyze and make a decision.
Is it worth repairing or straight to the landfill for recycling?
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By the way, what exact model of WD My Cloud was it?
Were you affected by the version change that occurred with these WD My Cloud models?

Hello everyone,
Tell me if I'm wrong but he is talking about the WD My Cloud Home 3TB NAS or WD My Cloud Home 3TB NAS Server.
The latter is used for automated backups and is therefore configured as such.

Also, if it's in a case, there is a board between the disk itself and the outside of the case.
A circuit for the cable connections, on the wall of the case (visible in the image opposite), and a circuit on the disk that manages the motor for the platters and read heads (under the disk if you turn it over).
It's not the same thing at all!
In any case, you would need to connect the disk alone directly to the computer (an old one preferably) to check this circuit. It is possible that it is defective but that does not mean that the disk is dead!
If you don't hear it spinning, it is possible to replace it as long as you find exactly the same one.
I've done it several times but that was a long time ago!
Summary:
1- the disk board is dead but the disk is still recoverable!
2- The read heads are defective (crash disk for example). In that case, it's dead for good!
Best regards!
--
Happiness is the only thing that you can give without having it.

Good evening,
He is talking about the WD My Cloud 3TB white enclosure, not home.
I tested it on a SATA enclosure, identical to the one in the picture. The power indicator light on this enclosure is blinking and I notice that the electronic board of the drive is overheating.
Well, it's possible that the boards are faulty, and maybe not the hard drive.
But, I give up, I feel that this will be costly in terms of time and money.

Thank you to the contributors for their involvement and suggestions.

Hi bussy77600,
"He is talking about the WD My Cloud 3TB white enclosure, not a home server": So it’s not a server then!
So it’s a regular hard drive. I imagine you took it out of its original casing?


You only had the hard drive with its PCB left, the one that controls the motor of the disk (see example on the side). If it’s overheating, then that’s the problem.
You need to find exactly the same hard drive (temporarily, for the replacement, data recovery, then reinstallation on the borrowed disk).
It would really be a shame to throw away a 3TB disk without trying to recover the data.
Even a repair technician could do it according to the estimate, of course!
But it’s up to you... Best regards!
--
Happiness is the only thing that can be given without having it.

Hello,
I searched online to see if I could find the hard disk board, and indeed with the reference I found some suppliers, the price is not very expensive.
However, the information on these sites is not clear regarding the BIOS. I do not know if they provide the programmed board or a blank one that needs to be programmed.