Where can I get a replacement pcb for a Samsung hm320JI HDD ?

NO SUCH THING ever.
buy a new HDDl
you do understand all that is a secret right>?
why would they do that, and let china clone it 10x more easy.
that be super bad act by samsung. (they are Korean)

the full spec, on the hdd is at samsung, read that?
and sata spec, is on wiki.
that is all there is.
you posted lacking reason why?
hdd bad
installing it in some secret NON computer usage.?
like remote logging device, with custom processor and arm chip?
or? what?
usages matter, for sure.

A mounting fault of the HDD is detected when the HDD is started up from the BOOT ROM
HDD, Main controller PCB Try replacing the HDD, and download the system software. Is the problem corrected? YES: End. NO: Replace the main controller PCB.

A data read fault of the HDD is detected when the HDD is started up from the BOOT ROM Causes The wiring is faulty (short circuit, open circuit). The HDD is faulty. The main controller PCB is faulty. Remedy 1. Wiring Are the connection and the cable between connector J1025 of the main controller PCB and the connector J2005 of the HDD normal? NO: Correct the connector/cable. 2. System software Try re-installing the system software. Is the problem corrected? YES: End. 3. HDD, Main controller PCB Try replacing the HDD, and download the system software. Is the problem corrected? YES: End. NO: Replace the main controller PCB.

Mounting fault of the HDD.Viring faulty.The main controller PCB faulty.Wiring between connector J1025 of the main controller PCB and the connectorJ 2005 of HDD,or try reinstall the system software,or try to replace HDD and download the system software,or replace the main controller PCB...

It will be best to buy an other HDD, rather than trying to replace the PCB. Gopakumar Gopalan Google

PLEASE CLARIFY

ebay maybe?

Sadly the “click of *****” indicates that the read/write arm actuator has failed and the drive is no longer useable. If the arm has contacted the platter then it is unlikely any data will be recoverable. If not, a specialist recovery firm can retrieve data but this will be very expensive as it has to be done in a vacuum. A new drive will cost far less - hope you backed up your data!

exact problem here but for the st3500320as

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Thanks