Need firmware for pc3k WDC WD20EARS-00MVWB0 25.12E

[Spildit]

You will have to go to "Module Operations" Tick the box w/o road map and only then you will be able to write modules whitout using the road map.

[Spildit]

Then i think you will need to write back module 0001.rpm .

[michael chiklis]

What should i do now?

[Spildit]

Try to "Read" module number 01.
See if it allows you to read and save the module.
If so compare with the one that you already have backed up using hex editor.
If diferent, place the old one on the work folder, rename it to 0001.rpm and write.
Make sure that the format of the module is the same and the size is the same.
Upload the module prior to write, if on doubt.

[michael chiklis]

No it doesn't read, i get ~id0001.bad (0 byte) if i push "read"

P.S.
i copied the 01 module from my backup folder to WDR working folder, then i pushed "write" into w/o road map window.
Still i can't see modules.

P.S2
If i push once again "read" after i write 01 backup, i still get ~id0001.bad

Last edited by michael chiklis on April 23rd, 2013, 17:47, edited 1 time in total.

[Spildit]

I think it's end of the line then.
Unless you manage to fix the head map that was damaged by depop, and aparently written on SA.
It's strange because Head map should be on ROM, and that should allow access to SA ...
Well, you can go back to "Heads map" again and try to tick "Auto Good Map" and "save" ? Or if it doesn't work untick "Heads Map on" and save ? At any rate if you are not going to send the drive to a pro and if you are going to RMA it anyway, you don't have anything to loose.

[michael chiklis]

i already "played" today afternoon with "Auto Good Map" and "Heads Map on", but i still can't see modules.
The only way i can see modules is when i do Road Map - Via enumeration, but i'm not able to read or write them

What can you tell me about "init" button on w/o roa Map?

Last edited by michael chiklis on April 23rd, 2013, 17:54, edited 1 time in total.

[Spildit]

What about changing "Virtual Head count" to 6 and save ? or press the arrow on the left of the number ?

[michael chiklis]

Virtual head it's already set to 6

[michael chiklis]

If one haead is off now (suppose one which reads the SA), why can't i read SA from the other head?
SA is on 2 heads (0+1), right?

[Spildit]

Well, again, i think it's game over. You will need either better tools or Hot-Swap.

[michael chiklis]

ok thanks, tomorrow i will ship the drive in rma

[Spildit]

ok thanks, tomorrow i will ship the drive in rma

No problem.
Again, at least we tried.

[Spildit]

If one haead is off now (suppose one which reads the SA), why can't i read SA from the other head?
SA is on 2 heads (0+1), right?

Did you try the "edit config sector" on actions ?

[Spildit]

This is really strange as the Head Map should be stored on a ROM module, and any compatible ROM should be able to access SA.

[michael chiklis]

Head depop writes also in some SA modules (WDR 3.0 works this way).
If you read my previous posts, when i did the head 1 depop, i couldn't turn on head 1 with only ROM restore (the drive was still identified as 1500 GB but modules were accessible), after i restored SA modules from backup the drive was again detect as 2 TB.
viewtopic.php?t=25749&f=1&start=120#p175449

Maybe head mapping change only ROM information, but head depop does also SA changes.
If i had made ​​the head map instead of the head Depop, maybe all of this would not have happened, but now ...

[Spildit]

Head depop writes also in some SA modules (WDR 3.0 works this way).
If you read my previous posts, when i did the head 1 depop, i couldn't turn on head 1 with only ROM restore (the drive was still identified as 1500 GB but modules were accessible), after i restored SA modules from backup the drive was again detect as 2 TB.
viewtopic.php?t=25749&f=1&start=120#p175449

Maybe head mapping change only ROM information, but head depop does also SA changes.
If i had made ​​the head map instead of the head Depop, maybe all of this would not have happened, but now ...

I guess that you are correct. What i can't understant is why wdr can't write back to SA ... well, guess that now only a hot-swap or loading from loader file would be able to solve it.

[hddguy]

To 'depop' a head will change sizes of zones, which will make data recovery impossible. Change head map in RAM retains zone sizes, but if head other than SA head is set it wont read anyway, also for Sadle head map edit process in commercial tool is not same as older series.

[Spildit]

Thanks for sharing.
I guess that it's RMA time now !

[michael chiklis]

Thanks for sharing.
I guess that it's RMA time now !

I packed up the drive this morning, now i'm waiting the arrival of the courier.
Thank you every one who helped me and who gave explanations.