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Data recovery and disk repair questions and discussions related to old-fashioned SATA, SAS, SCSI, IDE, MFM hard drives - any type of storage device that has moving parts
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ST500LM000

September 2nd, 2025, 14:31

Hi, my disk broke, until it happened I didn't even know that there was such a thing as SSHD. I called a company that could repair it and then they told me how much it cost, I started looking. Fortunately, I have some experience with programming and electronics. According to what I read on the forums, the terminal output indicates a damaged NAND. I bought a second PCB with the same S/N on eBay. I read the contents of the patient's and donor's EEPROMs and using F3 Rom explorer moved CAP RAP and SAP from the patient's EEPROM and later also IAP. Of course I have no idea what I'm doing :) It didn't help, the disk spins up, but the terminal says FAIL servo op=0100 Resp=0007 and other things. Can anyone please help me? Thank you.
Attachments
st500.zip
(1.94 MiB) Downloaded 30 times

Re: ST500LM000

September 2nd, 2025, 14:50

Full terminal log when turned on?
"says FAIL servo op=0100 Resp=0007" - this applies to the heads, not to the PCB.

Re: ST500LM000

September 2nd, 2025, 15:17

I am attaching the logs...
Attachments
patient_pcb.txt
(686 Bytes) Downloaded 24 times
donor_pcb.txt
(1.08 KiB) Downloaded 22 times

Re: ST500LM000

September 2nd, 2025, 21:12

Either drive is not spinning or heads are bad.

Re: ST500LM000

September 3rd, 2025, 3:13

more probably adaptives are still read from nand

Re: ST500LM000

September 3rd, 2025, 10:32

so no chance of home rescue? any eeprom modification?

Re: ST500LM000

September 3rd, 2025, 16:48

pepe wrote:more probably adaptives are still read from nand

+1
Do you have terminal access after PCB swap?
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