Need firmware for pc3k WDC WD20EARS-00MVWB0 25.12E

[michael chiklis]

Sediv free version is not able to load from loader, only generates it (which is the same of module 11).
Does WDR 6.0 able to load the loader?
How?

[michael chiklis]

Maybe i understood what's wrong on head map...
If i push the button in the red circle, it counts only 1 head:

So i think it can't load SA because 5 heads are off or not counted in head map...
It makes sense for you?

[michael chiklis]

Now if i push the button in red circle i get always 6,

[pcimage]

You have a messed up head map.
Tick the 4 first ones and untick the others. Then save.

No!

0,1,2,5,6,7 is valid head map for SadleG6 drives

[pcimage]

Logical vs Physical

Not always the same

Typical 2Tb SadleG6 has physical 0,1,2,3,4,5 (i.e. all populated) but logical (ROM head map) 0,1,2,5,6,7

As a typical 500Gb Tornado have 2,3,4,5,6,7 in ROM, but 0,1 are not physically missing.

I have no idea how WDR (or whatever software he used) decides which is which for "de-popping".

[michael chiklis]

In the pic you can see that i have depopped head 4 on "virtual head"

If rom head map is 0,1,2,5,6,7, what physical head has been turned off?
(maybe head 5)

[michael chiklis]

It's a "Road Map error", i don't know how to fix it.

[michael chiklis]

Did you really restore ROM using the external programmer ?

Yes Spildit, i restored with my eeprom programmer, nothing change.

[michael chiklis]

What should i do now?

[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.

[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.

[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?

[michael chiklis]

ok thanks, tomorrow i will ship the drive in rma

[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 ...

[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.

[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.