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 Post subject: Toshiba Clear G-list ATA command
PostPosted: January 26th, 2018, 10:32 
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Joined: July 6th, 2013, 15:13
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Hi

Is there any one who have Toshiba ATA command to Clear G-list.
and Clear Password command.

Please share if possible.

Kind Regards
Waqas Ali


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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 26th, 2018, 14:20 
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waqas_ali766 wrote:
Hi

Is there any one who have Toshiba ATA command to Clear G-list.
and Clear Password command.

Please share if possible.

Kind Regards
Waqas Ali

This is a joke isn't it?
You are a reseller of SeDiv , so you should know them both.

:D :D :D


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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 26th, 2018, 14:59 
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SATA VSC for Toshiba are NOT THE SAME as IDE.

VSC to clear G-List is diferent from VSC to clear Password.

VSC to clear password is a "close friend" of the VSC to clear S.M.A.R.T. and Renew Drive as those VSCs will re-initialize modules that are written on the platters.

But as stated ... you should know them...

Also you do have SeDiv so you can sniff the command out of it ...

Why would you need those commands ? Are you going to build your own tool for Toshiba refurb / unlock ?

And yes, i do know those commands for SATA and for IDE as well....

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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 26th, 2018, 16:09 
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Here - viewtopic.php?f=15&t=35889

I'm willing to trade the Toshiba SATA VSC to clear password / re-set password module on platter by a "script" or method to clear ATA password on Fujitsu 2.5 SATA dives !!!

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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 26th, 2018, 16:29 
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Joined: July 6th, 2013, 15:13
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Location: ISLAMABAD
Hi
Sorry i have written wrong,

I need ATA command, to excute with the help of PC3000 ATA command function of my Toshiba DVR lock hard disk.
My drives show Password locked.

and no tool can access those DVR locked drives.

i am only the Technical support person, not a re-seller now.

and also i am not a programmer, so i not know about command of Toshiba.

i don't know any thing about ATA commands.

Kind Regards
Waqas Ali


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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 26th, 2018, 17:52 
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Ok .... Commands to clear password or to clear g-list would be the same as using PC-3000 or SeDiv to do the same functions ....

PC-3000 ATA command would be the same as using any other ATA terminal like HRT, SHTR, MHDD scripts, HDDSuperTool, etc .... Commands are the same whatever tool you use.

If you use PC-3000/SeDiv to unlock the ATA password then it will send the command that you will not see. If you send the command with ATA terminal you will know the command ....

But that command that i have and SeDiv have is for unlocking ATA password. For DVR locked you would have to "play" with the drive and try to figure out how to unlock it !!!

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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 28th, 2018, 5:19 
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Hi
After Unlock the DVR hard disk

two things happened

1. looks like Read Ahead locked (Reading is very slow)
2. hdd not start writing.

Any solution for this ?


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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 28th, 2018, 9:25 
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waqas_ali766 wrote:
Hi
After Unlock the DVR hard disk

two things happened

1. looks like Read Ahead locked (Reading is very slow)
2. hdd not start writing.

Any solution for this ?


How did you unlock the drive ?

Did you use the command to unlock the ATA password ?

What do you mean by "unlock" ? Did you change something on CPs ?

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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 28th, 2018, 17:46 
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Joined: July 6th, 2013, 15:13
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Location: ISLAMABAD
For unlocking DVR lock ,
you can simply take a donor ROM,
Copy all Patient CP to donor ROM and write to hard disk.

I think i am missing some things, because of this drive disable Read lookahead, and disable writing.

Don't know where is wrong.

May b need to transfer some part of patient ROM to Donor, other then CPs.

By the way, i msg you on skype, i think you are not online

here is my skype ID = waqasali766@hotmail.com


Kind Regards


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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 28th, 2018, 19:11 
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This would imply that the "lock" is done in ROM main code ... Changing ROM main code at least partially unlocks the drive.

It's strange that you can't use read look ahead and you can't write to the drive.

Maybe the read cache was disabled by setting a configuration flag on some of the CPs that you copied back to donor ROM.

It might be that the drive have a "flag" that one can set for read only mode. Maybe that is also set on CPs ...

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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 29th, 2018, 16:00 
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Yes Exatly
After that the Drive is Read only.

Reading ok with disabled read lookahead.
writing impossible.
after transfer the CP from patient to donor, hdd show pwd.

Unlocked the PWD done.

after that the above condition is appeared.

i also test this on Normal Toshiba MQ01ABD050 drive working fine

I just shift all CP to donor ROM
This hdd also give same condition , Write disabled, and read with disabled look ahead.

It seems that we need to do some changes in the CP or need shift some part of ROM also in to the Donor rom.

Then it will work ok

Kind Regards
Waqas Ali


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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 29th, 2018, 16:34 
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Agree !!!! Maybe we should "patch" some CPs or ROM itself to disable the lock.

More investigation/research is required.

You can start by setting read cache on/off on a good drive and compare CPs to figure out where does the drive keep the setting ...

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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 29th, 2018, 17:10 
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IIUC, the same read-only problem occurs when CPs from a "non-DVR" patient are transferred to a non-DVR donor. If so, then I would suspect that there may be a bug in the tool that is reading and writing the CPs. This was demonstrated in other threads.

Could we see before-and-after ROM dumps from the DVR and non-DVR drives? Could we also see the CPs that were extracted from each of the patients?

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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 29th, 2018, 17:11 
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Heh, this i also have the same symptom in Toshiba ABD series :)
Also My disk is ABD050. FW AX001U.
Read Work fine, write no.

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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 29th, 2018, 18:23 
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fzabkar wrote:
(...)If so, then I would suspect that there may be a bug in the tool that is reading and writing the CPs. This was demonstrated in other threads.


Nope ...

Tools have BUGS, all of them have, including PC-3000 that can retreive CPs with wrong sizes but Toshiba drives have a cool peculiarirty ....

When writting CPs if the checksum of the CP is not correct then the drive will not write that CP !!!

This is exactly why all of those drives "survived" when writting back CPs that were incorrectly read by PC-3000 .... They weren't writting back at all.

1 - You use PC-3000 and you download a CP with incorrect size. No problem with that because the VSC allows you to specify the size so if you input incorrect size you get partial CP or a CP with more data.

2 - Try to write that CP back with the same incorrect size, the drive will check the checksum and it will be incorrect so it will not write the CP back to he drive. On Toshiba if checksum doesn't match the drive itself will refuse to write the CP.

I did test this with HRT and with SeDiv even on modern Toshiba SATA drives (2.5). I do have the VSC to read/write to CPs and i can confirm this even by ATA terminal.

Yes, all tools have bugs and they are using a "list" todetermine the CP size but if you fetch incorrect CP you will not be able to write it back.

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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 29th, 2018, 19:49 
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If the OP managed to read all the CPs without error (ie no bad checksums), then which tool did he use?

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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 29th, 2018, 23:16 
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pikus_09 wrote:
Heh, this i also have the same symptom in Toshiba ABD series :)
Also My disk is ABD050. FW AX001U.
Read Work fine, write no.

Could we see your ROM? CPs?

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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 29th, 2018, 23:25 
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waqas_ali766 wrote:
For unlocking DVR lock ,
you can simply take a donor ROM,
Copy all Patient CP to donor ROM and write to hard disk.

Both ROM's should be of same FW revision. Did you check that?

FW Version: AM0P2C0Q


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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 30th, 2018, 8:31 
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Waqas want unlock propably VS series.

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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 30th, 2018, 14:59 
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fzabkar wrote:
If the OP managed to read all the CPs without error (ie no bad checksums), then which tool did he use?


Most likely PC-3000.

Firmware tools have tables for familes with CPs and Sizes. Just because PC-3000 does have wrong CP size for some families it doesn't mean that it will have the same problem on *ALL* families.

As a matter of fact i do expect that the "bugs" or wrong CP sizes are "minimal" and restricted only to a few bunch of drives.

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