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 Post subject: what could be Exact technical issue in rebuilding rom
PostPosted: June 25th, 2019, 0:41 
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Joined: January 12th, 2016, 3:46
Posts: 83
Location: India
I am working on a WD Tornado family disk --- WD3200AVJS -63TBA0 PCB rev. PWB - 2060-701444-003 Rev.A ) ,Its original pcb is bricked.
This model has embedded rom within mcu.
I have arranged donor pcb fro same family model , there is slight difference in pcb rev though.
I am following procedure as per acelab video.When powered from donor pcb it clicks and spins down.
After loading permanant overlay disk get initiated from rom & shows ROM model, firmware ,capacity (partial) etc.
When I proceed for next step I could get SA SPT as well , but when tried to load dir in ram , disk gives errors and I could not proceed further.I cant read modules in SA as well , in short I get errors like LBA 0 translation error etc.
What to blame now -- difference in pcb rev / non compatible loader / weak heads , SA defects or anything else.


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 Post subject: Re: what could be Exact technical issue in rebuilding rom
PostPosted: June 25th, 2019, 2:07 
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Joined: September 30th, 2005, 7:33
Posts: 660
Wrong DIR address in mod 0B of donor ROM.
Try to read tracks and find modules 01, 02 , 11, 1B ...


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 Post subject: Re: what could be Exact technical issue in rebuilding rom
PostPosted: June 25th, 2019, 21:09 
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Joined: January 12th, 2016, 3:46
Posts: 83
Location: India
Thanks BGman ,
Unfortunately now disk is not coming to DRD DSC but busy & SATA II (phy) led are flashing. What this could mean.


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 Post subject: Re: what could be Exact technical issue in rebuilding rom
PostPosted: June 26th, 2019, 2:41 
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Joined: September 30th, 2005, 7:33
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posidon wrote:
What this could mean.

It means that you have done something wrong.
If the data is important to you, send the drive to a DR company. If not, just trash it.


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 Post subject: Re: what could be Exact technical issue in rebuilding rom
PostPosted: June 29th, 2019, 14:58 
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Joined: March 7th, 2009, 12:43
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posidon wrote:
Thanks BGman ,
Unfortunately now disk is not coming to DRD DSC but busy & SATA II (phy) led are flashing. What this could mean.

That is mean you killed donor PCB trying to write improper version of rom . Get another one , or better, couple of them.

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 Post subject: Re: what could be Exact technical issue in rebuilding rom
PostPosted: June 29th, 2019, 19:04 
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Joined: December 19th, 2006, 8:49
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DR-Kiev wrote:
posidon wrote:
Thanks BGman ,
Unfortunately now disk is not coming to DRD DSC but busy & SATA II (phy) led are flashing. What this could mean.

That is mean you killed donor PCB trying to write improper version of rom . Get another one , or better, couple of them.


Not needed ....

You should be able to write new ROM by boot code mode even with bricked PCB due to wrong ROM code ... At least on the majority of models you should be able to do this ... Usre PC-3000 to connect to the drive by terminal and use boot code option on PC-3000 to read/write ROM by terminal ....

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 Post subject: Re: what could be Exact technical issue in rebuilding rom
PostPosted: July 1st, 2019, 3:31 
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Joined: January 12th, 2016, 3:46
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Location: India
Thanks a ton Spildit
I did exactly what you said and fortunately could recover all data. Your post came just in time when I was about to give up the case. :D :good:


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 Post subject: Re: what could be Exact technical issue in rebuilding rom
PostPosted: July 1st, 2019, 10:37 
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posidon wrote:
Thanks a ton Spildit
I did exactly what you said and fortunately could recover all data. Your post came just in time when I was about to give up the case. :D :good:

Give up the case just because of an incorrect ROM version!!! If you are a data recovery engineer you will get a lot tougher cases than this one.

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 Post subject: Re: what could be Exact technical issue in rebuilding rom
PostPosted: July 1st, 2019, 13:32 
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Joined: February 2nd, 2019, 1:21
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congratulations SPILDIT and POSIDON


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 Post subject: Re: what could be Exact technical issue in rebuilding rom
PostPosted: July 1st, 2019, 13:49 
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Joined: December 19th, 2006, 8:49
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Thanks

:shock: :shock: :shock:

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