ST9500424AS - LED:00000067 FAddr:00380338 = BAD ROM?

[DRUG]

Hey guys,

I've came across a ST9500424AS that when connected to terminal displays LED:00000067 FAddr:00380338.

Spin up is normal, no strange noises. I've managed to find a donor and patient heads read well on donor platters. Donor heads produce the same LED:00000067 FAddr:00380338 issue.

Can the ROM be damaged?

If so, can someone point me to a possible work around?

I'll attach a copy of the rom if someone want's to take a look.

P.S: On F3 Explorer i get a CRC error on IAP but fzbakar told me it's normal.

All ideas are welcome.

Attachments

ROM6WS.txt

(512 KiB) Downloaded 288 times

[Lardman]

Same error with the pcb disconnected?

[DRUG]

Same error with the pcb disconnected?

Yes, I've swapwed PCB + ROM IC and same result...

[Lardman]

Does it stay spinning or spin down, any clue from the registers. I'd be thinking heads still.

[pepe]

it cannot load ovl, that's why it fails with LED:00000067...

pepe

[fzabkar]

Is it time to try a loader?

[pepe]

not sure it is the perfect idea. It might not be the OVL that is bad, more probably something else is causing the fw to call something in the ovl before it is loaded. I have cure for such thing...

pepe

[rames lopes]

Could you inform the patient and donor PCB number

Compatible PCBs for this model are 100620560 REV.A 100619769 100610953

if you have these PCBs in good condition in your labs, you could see which terminal output to the PCB connecting the HDD and separate from the HDD if F3 T> stable without restarting and crashing

or

EarlySpinup Enabled
Rst 0x10M
ExecuteSpinRequest
LED:00000067