Hello. Somebody has asked this before here but I'd like to hear some more information.

My Samsung HD501LJ suddenly stopped working and one IC burned. There is a hole in it. It is the IC which drives the motor. In working HDD it gets very hot when the drive starts.

I bought two of Samsung HD501LJ HDD:s and changed the board. The IC doesn't burn so the motor seems to be OK. But the drive only starts, takes some readings and then it shuts off again. I believe that neither of these boards don't have the right firmware for this drive.

How can I check that the board is the right one? What or which IC must be the same and how identical they have to be? There are three IC:s. The one which burned (I hope that this is not the one which has the information needed) and processor IC plus one memory IC. I believe thet the processor IC has the information but not sure. I have some pictures where you see these IC:s and the label of the HDD.

Somebody told that the Rev must be the same. And it is, all are Rev. A. Then he says that TW xxx must be the same. But where is that TW-number? On the processor IC there are letters TW but no numbers are following it.

And finally, do you think that I could just replace the burned IC? If that doesn't have any information needed, it should work. I know how to do it because I'm electronic maintenance engineer and I have the right tools. The burned IC is on the left upper corner (rotated 45 degrees).

Hi,
The part of the FW is located in Flash memory inside 88i6725.
Locating a compatible PCB is not easy, as the FW rev is not noted anywhere on the drive, nor the PCB.
So it is a good idea swapping the motor driver, if u are skilled enough to do that.
In this case check the other nearby semiconductor parts like diodes, and that transistor to protect the new motor combo as much u can.
Or U may find a company to recover your data for a not too high fee, I suppose it should be not more than 200 eurs, provided that drive internals are not affected.

pepe

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Adatmentés - Data recovery

yeah. swap motor chip will be more easy for you. do you have replacement one?

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Sometimes the FW version is written on the PCB (e.g. TW100-14) but more often than not it's not, so we have to find it out by hot-swap and reading out data from the SA and interrogating the right module to determine the FW version. Then it's easy to find a compatible donor.

This procedure is straightforward if you have the tools and the knowledge, but it's not DIY'able.

Pepe is spot on with the price of around €200, we would charge between £149-£195 for this case.

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Under 200 e sounds very reasonable to me. I have asked few places and they told me that it costs around 700-800 euros which is quite a lot of money.

I have checked the components around the motor chip and they are OK. I believe that the IC has just burned due to very hot temperature when starting the drive. I thought that I'll take the replacement IC off one of those working drives.

Hi all,

I'm suffering the same issue, cant figure out yet which chip as fried, although
it seems to be 88i6725 but I really have no skills at electronics at all.

Anyways, i wanted to have a feedback from the Finnish user here and
also maybe to know if samsung is able at least to provide me with what
FW my drive as been manufactured with, so i can hopefully find a replacement
PCB.

Find an attached picture of the drive.
Here are the PCBa informations;
model: HD501LJ
serial: SOMUJ1MP821129 (O might be Zero/0)
Rev: REV. A
PCBA: BF41-00133A / TRIDENT 11-RE / Rev06

Thanks for your help.
best regards,
m.

I have just had a burnt out chip on my HDD also. Has anyone had any luck retrieving the data from their HDD through any type of operation? The chip that fizzed is the large diagonal one near the Orange ribbon, I have manged to get the USB detection through windows but the drive wont populate its space in the system. I feel that the main Circuit board is definitely dead and i will need to get a replacement.it looks like it is possible to jump start the motor through soldering the 4 main points on the orange ribbon if i had another drive.
Any Suggestions?

Guess what? It's going be the only chance. As far as I know. And I do know something.

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If i can get my hands on a PCB BF41-00133A TRIDENT 11-RE Rev.06
then i will be fine. I need to find another drive which has it. apparently the 300gb version of samsungs drive is the same PCB.
The only wires i would have to solder over would be the orange ribbons right?

There is no soldering to do at that cable. You'll see if you remove the pcb its a connector.

Dobre

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Would anyone here have a PCB I could buy? I do live in Australia and its really hard to find this particular HDD. I called Samsung and it is Discontinued. With the connector, How would i connect the new PCB? does that Black thing just sit over the top and clamp down on the orange ribbon? I'm guessing if i have a replacement PCB it will be very easy to just hook it up and it will work again like normal via that connector?

Cheers

Justin_melb,

Just make sure you do no harm with a PCB swap.

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