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 Post subject: Need help with hddhackr
PostPosted: January 17th, 2022, 22:26 
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Joined: January 17th, 2022, 22:18
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I need to change a serial# on a 500GB WD LPLX. HDDSS.bin flashes fine, but the UNDO.BIN always throws a Wrong Size error. I usually just change the Serial# in the UNDO.bin with older Models and it works great, but I am at a Loss with these newer (2015) LPLX models. I am hoping someone who knows how to use hddhackr knows how to edit HDDSS.BIN that can help me out.
I am including the HDDSS.BIN i am using.

Thanks.


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 Post subject: Re: Need help with hddhackr
PostPosted: January 18th, 2022, 12:43 
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I guess since its my first post it doesnt allow me to add files. I'll try again.


Attachments:
HDDSS500.zip [3.02 KiB]
Downloaded 240 times
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 Post subject: Re: Need help with hddhackr
PostPosted: January 18th, 2022, 22:37 
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After some researching it seems like 0xB - 0x13 would give me a 9 byte serial# i need. Im wondering if i should just pad 0x6 - 0xA with 20 and then pad from 0x14 - 0x1B with 20 ?


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 Post subject: Re: Need help with hddhackr
PostPosted: January 18th, 2022, 23:29 
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Do these help?

HddHackr — how it modifies a Western Digital drive for use in an Xbox 360:
http://www.users.on.net/~fzabkar/HDD/HddHackr_analysis.html

HDDHackr - lost UNDO.BIN - how to restore capacity:
http://www.hddoracle.com/viewtopic.php?f=86&t=141

That said, I don't know if your model's firmware is locked. Maybe that's why you can't make changes.

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 Post subject: Re: Need help with hddhackr
PostPosted: January 18th, 2022, 23:50 
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fzabkar wrote:
Do these help?

HddHackr — how it modifies a Western Digital drive for use in an Xbox 360:
http://www.users.on.net/~fzabkar/HDD/HddHackr_analysis.html

HDDHackr - lost UNDO.BIN - how to restore capacity:
http://www.hddoracle.com/viewtopic.php?f=86&t=141

That said, I don't know if your model's firmware is locked. Maybe that's why you can't make changes.


Whats strange is the drive takes the HDDSS.BIN and Modifies the Model (thinks its a hitachi) So it definitely isnt locked (at least to change the Brand) but the serial# is left unchanged. And as ive said, when i try to revert back to the UNDO.BIN it give me a a wrong size error. Only seems to be an issue with these WD Black LPLX models. Same issue with a 2015 and a 2017. I am just afraid to modify the HDDSS.BIN in those address locations in fear that it might brick them.
Just to be clear, these WD drives are not totally bricked. Just stuck being a Hitachi with original WD Serial#


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 Post subject: Re: Need help with hddhackr
PostPosted: January 19th, 2022, 0:01 
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Could we see the UNDO.BIN file?

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 Post subject: Re: Need help with hddhackr
PostPosted: January 19th, 2022, 0:18 
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fzabkar wrote:
Could we see the UNDO.BIN file?


Sure.


Attachments:
lplxUNDO.zip [1.48 KiB]
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 Post subject: Re: Need help with hddhackr
PostPosted: January 19th, 2022, 12:37 
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UNDO.BIN contains two saved ROM modules, 0x0D and 0x02. Module 0x02 is divided into several sections, the first of which contains several serial numbers. Earlier models contain only a single serial number. I suspect that HddHackr only modifies the first serial number.

See the text file in my attachment. Section 1 is the serial number section.


Attachments:
WD5000LPLX.7z [3.99 KiB]
Downloaded 237 times

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 Post subject: Re: Need help with hddhackr
PostPosted: January 20th, 2022, 7:19 
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Joined: January 17th, 2022, 22:18
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fzabkar wrote:
UNDO.BIN contains two saved ROM modules, 0x0D and 0x02. Module 0x02 is divided into several sections, the first of which contains several serial numbers. Earlier models contain only a single serial number. I suspect that HddHackr only modifies the first serial number.

See the text file in my attachment. Section 1 is the serial number section.

Any idea why i am not able to restore the original UNDO.BIN?


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 Post subject: Re: Need help with hddhackr
PostPosted: January 20th, 2022, 12:24 
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Modules 0x0D and 0x02 are the correct size, so I have no idea why HddHackr is complaining.

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 Post subject: Re: Need help with hddhackr
PostPosted: January 20th, 2022, 13:52 
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You can dump all the SA modules with the demo version of WDMarvel.

https://wdmarvel.com/en/demo/

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