Hi,

A friend drop the disk on the floor +- 1 m.
At the time no power on USB or connect to a computer.

When I power on - USB ... click , click and the leds in the back flashing.

Heads?????

I examined the PCB and no broken parts ... nor the USB

Regards,
Ruy

Not DIY in this case, the heads might be damage from the fall.

"Might be damaged" = "will be damaged"

Do not power the drive up any more, or it will cause more damage.

As izualim says, it's not DIY.

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@neuron, when the drive was dropped, the heads would have been parked on the loading ramp.

Here is a video demonstration by forum member waqasali766 ...
http://www.mediafire.com/download/cvo59 ... k_head.zip

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So that would prevent them being damaged?

Why the click click then?

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Maybe the headstack fell off the ramp onto the platters? Or perhaps the spindle motor seized and the OP is describing the corresponding sound differently than we would expect?

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Then I would expect a "bzz bzz" sound rather than clicking. I can only go by the OP's description as "clicking"

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When drive is dropped (especially on hard surface) heads might get bent a little (while on the ramp). After you power up such drive there are 3 usual scenarios:
1. The drive might work but it will be slow and might degrade. The reason is when heads bent just a little they still might be able to read data but because their geometry has changed, they might go closer to the surface than needed and this will produce media damage eventually, causing drive to be completely unrecoverable
2. The heads bent more than in the first scenario and they cannot read data (you'll hear clicking sound). That definitely means their geometry will cause media damage. It doesn't mean MD will be catastrophic right away but the more you power up the drive the more damage will be caused by bent heads. Such drive will have bad blocks and light MD might turn to severe MD, causing drive to be completely unrecoverable
3. If heads were severely bent first power up will cause them to go to surface (you'll hear clicking sound) and first power down will cause them to go back on ramp but because heads geometry is completely out of shape there is a high chance heads won't slide on ramp but will go under the ramp. This will cause heads to be ripped off and next power up will cause severe MD up to complete unrecoverability. Things will go very bad very fast (I'm talking several seconds here)

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Wowwwwwwwwwwwwwwwwww

Thanks for all the helppppppppppppp.

Please listen the file and report the type -> bzzzz, click or ...?????
http://wikisend.com/download/152668/WD1 ... 1ZSMS5.amr



This video from waqasali766 and the repair ... without a cleanroom ??????
And use the hands to touch the plates?????????

Regards,
Ruy

Yes the video is meant to demonstrate one thing, not be a total tutorial on DR practices. He has said so about this video, so not a huge deal.

It does look bad, but it's clear that he's just demonstrating the principles involved. It would be much harder to see what he was doing if he followed proper cleanroom procedures. The other thing that he didn't do was to examine the heads for damage. I would think that should be mandatory, but I suspect that the stiction fault was set up for the demo rather than something which occurred in the field.

BTW, waqasali766 is a trainer for SalvationData's customers, so these students would be well aware of the cleanroom requirements.

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doesn't sound like spinning drive
Might be sticktion but can also be #3 when heads get stuck between the ramp and platters and cannot get out

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Thank you.

And flash led ?

It possible to access info with the two rows of pins in back, near USB.

RAM, ROM or other info SA?????

Regards,
Ruy

Blinking LED on this drive is just a sign of general failure it doesn't explain the failure
The drive definitely suffers from internal problem, it's not DIY.
I suggest you seize any further tries to work on the drive because it might make drive's condition worse.
Advise you friend to seek professional help for the drive, that's the best you can do right now.

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Thank you very much Doomer, fzab


I will open in cleanroom.

One Q. - the 8 screws in this disk is only to keep the cover,
or any special function ...?
(Motor , plattes ...)

Regards,
Ruy

You are right ...
Platters don't spin. My initial info is not correct ... since the owner told me that the disk has no power ...

Heads stuck in the middle of the platters.

3 platters and 6 heads.

Please, what is the procedure?

Best regards,
Ruy

How important is the data on this drive?

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Hi Jono-ats,

In 80 and 90 most Mac and other servers have this problem and we
" ... gentle yet firm counterclockwise pressure on the spindle ..."
A member of the forum report this procedure.
And we use it.



This is the correct proc. (with this new technology) or any expert research another method?

The data is important.


Best Regards,
Ruy

It's a bit risky, doing that could rip the head of the arm and then any chance is gone of recovery on your own...

And your method / procedure is??????


Best Regards,
Ruy