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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 30th, 2018, 19:14 
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Joined: October 24th, 2005, 17:04
Posts: 244
Quote:
For unlocking DVR lock ,
you can simply take a donor ROM,
Copy all Patient CP to donor ROM and write to hard disk.

It is doubtful that DVR lock is associated with CP.


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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 30th, 2018, 19:21 
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Moltke wrote:
Quote:
For unlocking DVR lock ,
you can simply take a donor ROM,
Copy all Patient CP to donor ROM and write to hard disk.

It is doubtful that DVR lock is associated with CP.

donor ROM code + patient CPs -> patient ROM
;-|

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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 30th, 2018, 19:26 
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fzabkar wrote:
Moltke wrote:
Quote:
For unlocking DVR lock ,
you can simply take a donor ROM,
Copy all Patient CP to donor ROM and write to hard disk.

It is doubtful that DVR lock is associated with CP.

donor ROM code + patient CPs -> patient ROM
;-|


Well i guess that they have "locked" models and "unlocked" models and ROM from locked models is not the same as ROM from unlocked models.

So what they do is Locked ROM + CP - Locked Drive. Move CP to PCB with Unlocked ROM and they get PCB to use on locked drive and it partially unlocks it. But they move CPs so there is still something there that disable read cache and places the drive in read only mode....

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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 30th, 2018, 19:48 
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fzabkar wrote:
donor ROM code + patient CPs -> patient ROM
;-|

Installing DRV lock is unlikely to change CP
Does the installation of PUIS or standart ata. PWD change CP? ;)


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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 30th, 2018, 19:56 
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Moltke wrote:
fzabkar wrote:
donor ROM code + patient CPs -> patient ROM
;-|

Installing DRV lock is unlikely to change CP
Does the installation of PUIS or standart ata. PWD change CP? ;)


I don't have any drive here to test but i would start with the VSC to re-initialize ATA password module and then change the options on that VSC to see if i could clear the password. I would try "FF" as well ....

Example, you go from 01 to 04 to clear password, S.M.A.R.T. , etc and you have FF to "renew drive". I would try to "brute force" all the space from 04 to FF to see if any would "clear" any extra sector / module like DVR lock...

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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 30th, 2018, 20:10 
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Joined: October 24th, 2005, 17:04
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Spildit wrote:
i would start with the VSC to re-initialize ATA password module and then change the options on that VSC to see if i could clear the password. I would try "FF" as well ....

Example, you go from 01 to 04 to clear password, S.M.A.R.T. , etc and you have FF to "renew drive". I would try to "brute force" all the space from 04 to FF to see if any would "clear" any extra sector / module like DVR lock...

I doubt DRV lock is related to S-mod

Moreover, there are discs Toshiba blocking VSC (Wipe Technology) IE bruteforce will not help
But any lock can be removed through the terminal:) If of course it is available (and it can also be blocked)


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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 30th, 2018, 20:23 
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Moltke wrote:
fzabkar wrote:
donor ROM code + patient CPs -> patient ROM
;-|

Installing DRV lock is unlikely to change CP

That is not what the OP is saying. AIUI the OP is trying to defeat the DVR lock by using ROM code from a donor and the CPs from the patient, his reasoning being that the lock is in the code, not in the CPs. That is, he is replacing locked patient code with unlocked donor code, not locked CPs with unlocked CPs.

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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 30th, 2018, 20:33 
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fzabkar wrote:
That is not what the OP is saying. AIUI the OP is trying to defeat the DVR lock by using ROM code from a donor and the CPs from the patient, his reasoning being that the lock is in the code, not in the CPs. That is, he is replacing locked patient code with unlocked donor code, not locked CPs with unlocked CPs.

I got it. Thank you.

But I don't think the method will work.


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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 30th, 2018, 20:45 
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Joined: September 30th, 2005, 7:33
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Moltke wrote:
I doubt DRV lock is related to S-mod

Moreover, there are discs Toshiba blocking VSC (Wipe Technology) IE bruteforce will not help
But any lock can be removed through the terminal:) If of course it is available (and it can also be blocked)

Maybe not S-mod, but the sector next to it... And it can be init, too....


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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 30th, 2018, 20:54 
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BGman wrote:
Maybe not S-mod, but the sector next to it... And it can be init, too....

Right. But it's not CP and no rom-code

By the way, so
No need to know any commands to reset GList and pwd.
Only PBA access is required


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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 31st, 2018, 3:52 
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Moltke wrote:
No need to know any commands to reset GList and pwd.
Only PBA access is required

And SMART as well...
To calculate the correct PBA, however, you need to know the Zone Tables, so some VSC is still needed. Am I wrong?


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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 31st, 2018, 4:36 
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BGman wrote:
And SMART as well...
To calculate the correct PBA, however, you need to know the Zone Tables, so some VSC is still needed. Am I wrong?

ZT can try to parse from the ROM. (, without commands) but in principle, you can do without it.
Reading Maxlba +1, Maxlba + 2,MaxLba+N.... We in some step get and system objects (P/G lists, SMART, S...)


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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 31st, 2018, 15:04 
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If what you guys are saying is correct then i would test something ...

Get one of those locked drives (DVR) and backup all CPs including DD.

Use soemthing like SeDiv and clear/format ALL firmware tracks.

Restore DD, clear PASSWORD, Clear S.M.A.R.T. (this will generate new modules on platters for the mentioned components).

If DVR lock is set on a sector on a firmware track then it will be gone ...

Only problem that i can see is if the drive checks for presence of that module as it does with S module. If you delete all tracks you will end up with locked drive because S will be gone and you have to re-generate it.

But if DVR lock is related to SA/Track module/sector and that sector doesn't need to be re-generated formating the tracks should unlock the drive ....

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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 31st, 2018, 16:32 
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Spildit wrote:
Get one of those locked drives (DVR) and backup all CPs including DD.

Use soemthing like SeDiv and clear/format ALL firmware tracks.

You can't do this. The tools like SeDiv, MRT, PC3K don't read ALL modules and CP's, just what they are allowed to. They can't clear/format ALL firmware tracks because some parts of them are write protected (and maybe read protected as well).


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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 31st, 2018, 16:44 
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BGman wrote:
Spildit wrote:
Get one of those locked drives (DVR) and backup all CPs including DD.

Use soemthing like SeDiv and clear/format ALL firmware tracks.

You can't do this. The tools like SeDiv, MRT, PC3K don't read ALL modules and CP's, just what they are allowed to. They can't clear/format ALL firmware tracks because some parts of them are write protected (and maybe read protected as well).


You can clear the S module with SeDiv .... By formating tracks. That is exactly why if you format ALL (firmware) tracks with SeDiv you will end up with ATA locked drive. Because it will clear S module and ten you will have to use the function to clear password. This just uses a VSC to create a "new" S module without password set.

Did you test it yourself to remove a DVR lock on a Toshiba drive or ar you just "guessing" ?

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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 31st, 2018, 18:09 
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Spildit wrote:

Use soemthing like SeDiv and clear/format ALL firmware tracks.


Why make formatting? :shock: You just need to find this (these) PBA. (related to DVRlock) And only then to try to apply regeneration.
When erasing the system zone, you will lose a lot of interesting things
(from SelfScan logs, to some overlays, prototypes CP, etc.)

Quote:
Did you test it yourself to remove a DVR lock on a Toshiba drive or ar you just "guessing" ?

i haven't seen such discs.


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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 31st, 2018, 18:15 
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Moltke wrote:
Spildit wrote:

Use soemthing like SeDiv and clear/format ALL firmware tracks.


Why make formatting? :shock: You just need to find this (these) PBA. (related to DVRlock) And only then to try to apply regeneration.
When erasing the system zone, you will lose a lot of interesting things
(from SelfScan logs, to some overlays, prototypes CP, etc.)


Because i don't know where those PBAs are !!! I don't even know the format of the DVR lock module !!! If i apply a full SA format at least ALL of that will be gone .... Assuming the lock is there to start with.

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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 31st, 2018, 18:21 
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Spildit wrote:
Because i don't know where those PBAs are !!! I don't even know the format of the DVR lock module !!! If i apply a full SA format at least ALL of that will be gone .... Assuming the lock is there to start with.

But when you subtract all SA, you'll be able to filter out the digital trash, and experiment with a smaller number of PBA
As long as we assume they're on the track starting with PList (2 ?)


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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: January 31st, 2018, 19:29 
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I don't have any of those drives to test.

If i were to have one of those i would start by trying the clear VSCs...

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 Post subject: Re: Toshiba Clear G-list ATA command
PostPosted: March 30th, 2018, 12:06 
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Joined: July 6th, 2013, 15:13
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Hi
Sorry i was not here, and also i forget the my post.

yes i can upload the ROM original and donor and new created,

I am using Hex. there is no chance that i missed the module.

After shift all CP to donor ROM, first problem was its pwd locked.

just clear password and its unlocked

if you read the hdd sector in pc3000, then speed is perfect 80MB/s

but if you use any other tool, mrt, victoria, hdtune and any other, its like read look ahead, and write cache


i not do research on this, for last 1 month.

Kind regards


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