Hello,

Dear Friend's,

I Have a TOSHIBA DT01ACA050 HDD,

This HDD PCB burn, so i am replace NEW same model number PCB and Swap ROM Chip.

But Still Not power up motor. But MRT tool show PWR / DRD / DSC ready mode.

Please help to me recovery this hard disk data.

Dear Friend,

Thanks for your post.

i am very carefully replace ROM chip,
and i can read ROM chip data.(see attach picture file)

[img]file:///C:/Users/PC/Downloads/rom%20data.png[/img]

also i am try with 2-3 same model PCB. but Still same

please help to me ...!

Hi,

i am replace ROM CHIP very carefully, and i am try with Same ROM chip with 2-3 PCB.
but still have a same problem.

also i can read ROM chip data in MRT rom program section.

please advice to me recovery method.

can you provide pics of both pcbs , (patient and donor )

yes,

i can.

please find attach picture file's

+1 yep, probably preamp

Ok so your motor controller has burnt out. Most likely you have much worse internal issues, such as heads stuck on platters which has caused it to burn out in the first place. Really it's lucky it doesn't spin anymore so at least you won't be able to do further damage. It will need to be opened in a cleanroom by someone with experience in this type of work, and any damage inspected and repaired before proceeding to spin up the drive again.

Hi,

i am sure motor working well,
because i am put donor PCB like attachment picture method.

then spin up motor and after few second spin down.

no one said anything about the motor, he said motor controller
the problem is with the HSA

Hi,

That mean need to replace head ?

most likely (hopefully there is no media damage)

The damage to the motor controller IC appears to be on the 5V side. The MCU also appears to be cooked. It's only academic now, but the OP could test the TVS diodes and fuses (?) to see whether the damage was due to an external overvoltage.

To confirm whether the preamp is shorted, I would measure the resistance between ground and each of the preamp supply rails.

_________________
A backup a day keeps DR away.

Only you can see that file. Can you upload the BIN/ZIP version of the "ROM"?

It won't matter for a physical ROM transfer, but be aware that MRT's Programming Unit has a serious bug that prevents it from reading ROMs without corruption, at least in some cases. If MRT can read the ROM in-circuit, then I would compare the in-circuit dump against the one you obtained via the Programming Unit.

_________________
A backup a day keeps DR away.

Hi,

please find attach ROM data file.

it's not a toshiba drive it's an hitachi ibm arm drive
do you have the NVRAM ?
hammm, actually it's in the ROM

i'm not familiar with MRT
connect the drive and flash the NVRAM see if there is a diff.

this is the NVRAM extracted from your ROM

Hi Jermy ,
Are These New Arm Series All Having NVRAM Inside ROM .What Offset It This At And Whats The Length Brother .I Was Thinking Its In MCU .So In His Case If Its Inside ROM And He Has Swapped The ROM Definitely Its a Preamp Complete Headstack Failure

_________________
Regards
Amarbir S Dhillon , Chandigarh Data Recovery Labs [India]
Logical,Semi Physical And Physical Data Recovery
Website-> http://www.chandigarhdatarecovery.com

Hi ,
Which Bug Are You Referring Too ? .

_________________
Regards
Amarbir S Dhillon , Chandigarh Data Recovery Labs [India]
Logical,Semi Physical And Physical Data Recovery
Website-> http://www.chandigarhdatarecovery.com

@ 0x2000 length of 0x1000 and there is also a copy right after @0x3000

apparently not

i have to agree