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WD20EARS-00MVWB0 sa access ?

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raven4d

Post subject: WD20EARS-00MVWB0 sa access ?

Posted: January 15th, 2014, 7:16

Joined: August 16th, 2012, 4:57
Posts: 324

Good morning ..

i have this
WDC WD20EARS-00MVWB00AB51
it's sadle G6

the drive had sa problems , head tests ok .

tried to refresh the sa area, so i took an original copy of the rom+rom modules+ modules + tracks ..

format sa , ok

now i can't access to the sa area to rewrite the mods or tracks , am using DFL

rewrite mod 1 and 35 failed !!

and am not able to write any mod or track ..

any idea will be appreciated ..

thanks

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waqas_ali766

Post subject: Re: WD20EARS-00MVWB0 sa access ?

Posted: January 15th, 2014, 8:23

Joined: July 6th, 2013, 15:13
Posts: 311
Location: ISLAMABAD

first try to upload ata overlay 11 number module in ram . then upload 01 to rom .
then open module directory then upload 01 and 35 then reset power
now again connect hdd . now upload module 11 in ram . then open module directory and upload all modules .
if u not upload 11 module to ram ,u cannot access sa.
its permanant overlay module

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raven4d

Post subject: Re: WD20EARS-00MVWB0 sa access ?

Posted: January 15th, 2014, 12:43

Joined: August 16th, 2012, 4:57
Posts: 324

waqas_ali766 wrote:

thank you for the hint ..

am aware of this method , but , u can't upload a mod to ROM , there are onlly two new options in the new dfl program

upload modules dir to RAM and upload a module to RAM

and even after uploading 01 to RAM am still unable to access SA , and not able to write modules neither by id nor by aba

i would appreciate if u can take a look by teamviewer

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BGman

Post subject: Re: WD20EARS-00MVWB0 sa access ?

Posted: January 15th, 2014, 14:28

Joined: September 30th, 2005, 7:33
Posts: 849

What is the firmware revision of your drive?
There are two groups of F/W and the approuch should be different for each one of them.

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raven4d

Post subject: Re: WD20EARS-00MVWB0 sa access ?

Posted: January 15th, 2014, 15:27

Joined: August 16th, 2012, 4:57
Posts: 324

it's

WDC WD20EARS-00MVWB0_51.0AB51_WD-WCAZAA437245_00200084_1980_256

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raven4d

Post subject: Re: WD20EARS-00MVWB0 sa access ?

Posted: January 17th, 2014, 7:48

Joined: August 16th, 2012, 4:57
Posts: 324

Spildit wrote:

raven4d wrote:

Did you try hot swap ?
Bad sectors might have been found while doing the SA format, correct ? If so it might afect ROM module containing sa translator/defects.
I have never tested with this and sadle is a pain... If you do the hot swap the defects on the donnor sa will be diferent so most likely will not work either...
Interesting, interesting !
More testing is required.
The more i learn DR the more i realize how little i know...

thanks for the answer ..
indeded sadle is a pain ..

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