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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Re: Samung HM250JI - not detected after PCB swap

September 16th, 2010, 5:23

Ok Janos, thank you but I'm a problem. The patient original Marvell Chip is probably burnt. I see it with my eyes.
So, if I can't use the original Marvell chip, all the datas are lost, not ?
Samsung Marvell chip is the same as Hitachi NVRAM with unique informations for each HDD. Is it exactly ?

Re: Samung HM250JI - not detected after PCB swap

September 17th, 2010, 2:46

If the original Marvell Chip is burnt nobody can help you. Forget about this HDD.

Re: Samung HM250JI - not detected after PCB swap

September 17th, 2010, 4:12

BGman wrote:If the original Marvell Chip is burnt nobody can help you. Forget about this HDD.


This is not true, i can help, if the hdd comes in to my lab....

Re: Samung HM250JI - not detected after PCB swap

September 18th, 2010, 7:19

Agreed.

Perfectly possible to recover, but not DIY.

Re: Samung HM250JI - not detected after PCB swap

September 22nd, 2010, 4:41

Hello,

Has anyboy have exactly the following marvell rom file ?

88i6726S-TFJ2
YPM17026
0832 B0P
TW

Re: Samung HM250JI - not detected after PCB swap

September 22nd, 2010, 5:17

Once for all :

Yan, the marking on the chip have nothing to do with code.
I can put the code I want on the chip as I usually do.

Re: Samung HM250JI - not detected after PCB swap

September 22nd, 2010, 8:09

Yes, I understand but how to find the code of the original patient rom.
The patient rom is burnt.

Re: Samung HM250JI - not detected after PCB swap

September 22nd, 2010, 9:13

From the other half of the apple ;)

Re: Samung HM250JI - not detected after PCB swap

September 22nd, 2010, 9:23

yan1982 wrote:Yes, I understand but how to find the code of the original patient rom.
The patient rom is burnt.


Taking a stab at it but I suspect you have to rebuild it manually with the right tools. It's not something you can just download.

Re: Samung HM250JI - not detected after PCB swap

September 22nd, 2010, 9:30

Can't be rebuilt and there are no COMMERCIAL tools yet. Need something else more.

Re: Samung HM250JI - not detected after PCB swap

September 22nd, 2010, 10:23

we can make it with non-original PCB work or do with some way for access data area. the special way is use Samsung factory software for re-write FW(with this way you will take around 1 Min for make it work with Non-original PCB) :)

Re: Samung HM250JI - not detected after PCB swap

September 22nd, 2010, 11:09

Wrong, because in their case heads were changed and there's something else. If you do so, writing - if you don't get an error immediately- you'll fuck the drive for sure. They can't access the 'sa' right now and rom is k.o. And you don't know config and sub-variants so you can't write a generic code . So your idea won't work. My only problem is that I can't handle their case and they are not here...

Re: Samung HM250JI - not detected after PCB swap

September 22nd, 2010, 14:17

all words in one: This case is recoverable in any decent lab. :)

Re: Samung HM250JI - not detected after PCB swap

September 22nd, 2010, 23:30

BlackST wrote:Wrong, because in their case heads were changed and there's something else. If you do so, writing - if you don't get an error immediately- you'll fuck the drive for sure. They can't access the 'sa' right now and rom is k.o. And you don't know config and sub-variants so you can't write a generic code . So your idea won't work. My only problem is that I can't handle their case and they are not here...

sorry. i mentioned operation with chage PCB only. may be your opinion is right. i have been done with HM160HI similar case. of course their no the same condition. as your mention if writing is done. drive is over? i think may be no. there should be have others ways for access :wink: please correct if i am wrong.

Re: Samung HM250JI - not detected after PCB swap

October 15th, 2010, 3:48

Hello.

News informations about this case.
The terminal log is not exactly the same this one.
On the patient hdd, there are the new hsa donor and new pcb donor.

What do you think about it ?

 1.5G Limited
SPW 1.5G Link Ok! 
IS=+00003
SO
H: +00000
Ld
SK C: 00001699
ENG>SRV>
SvoTbl Loaded
AEST
C: 0000032A H: +00003
SK C: 000043E3
BD
 1.5G Limited
SPW 1.5G Link Ok! 
IS=+00004
SO
H: +00000
Ld
SK C: 00001557
ENG>SRV>
SvoTbl Loaded
AEST
C: 0000032A H: +00003
SK C: 00004401
BD
 1.5G Limited
SPW 1.5G Link Ok! 
IS=+00003
SO
H: +00000
Ld
SK C: 00001247

It seems that the hdd search his SA zone, not ?
I let run the hdd a few minutes and the "SK C: xxxxxx" change.

Do you think that in a few minute, the hdd will find the zone and initialize ?

Thank you in advance for your answer.
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