Hitachi HTS547575A9E384 not recognized ?

[raven4d]

Hello .

i have this Hitachi drive , client claims that his laptop is turned on 24/7 , and out of a sudden , blue screen of death appeared , and BIOS not recognizing the HDD any more .

conecting it to DDI will result with the following .

drive spins fine , no abnormal noises ,
registers go to DRDY and DSC
once i try to refresh the list of the drives to get the drive to identify , " drive not responding " and ERR register will turn on


suspecting BAD ROM ?

any hints would be appreciated

[raven4d]

ROM reads the following

Attachments

ROM.rar

(114.35 KiB) Downloaded 327 times

[Doomer]

If drive spins up then the ROM is fine. High chance the PCB is fine too.

[saltwater]

Hitachi drives puts itself "safe drdy" when no signal comes from HSA.
So my opinion is there are bad heads inside the hood...