All times are UTC - 5 hours [ DST ]


Forum rules


Please do not post questions about data recovery cases here (use this forum instead). This forum is for topics on finding new ways to recover data. Accessing firmware, writing programs, reading bits off the platter, recovering data from dust...



Post new topic Reply to topic  [ 27 posts ]  Go to page Previous  1, 2
Author Message
 Post subject: Re: SSD firmware hacking.
PostPosted: February 27th, 2018, 11:50 
Offline

Joined: August 13th, 2016, 17:10
Posts: 70
Location: Vienna, Austria
You have to either sign the firmware correctly and then send it into the SSD with hdparm or Samsung Magician. Or you can upload it with JTAG.


Top
 Profile  
 
 Post subject: Re: SSD firmware hacking.
PostPosted: February 27th, 2018, 19:05 
Offline

Joined: March 19th, 2017, 9:16
Posts: 13
Location: hdlaing
here I have a samsung firmware update software , the modle almost same,but it for a fixed DELL model number(s) MZ7LM120HCFD00D3, who can modifiy it for all MZ7LM120HCFD00XX SSD?
software Download link is https://downloads.dell.com/FOLDER037232 ... 38_A00.EXE


Top
 Profile  
 
 Post subject: Re: SSD firmware hacking.
PostPosted: February 28th, 2018, 4:17 
Offline
User avatar

Joined: September 8th, 2009, 18:21
Posts: 10786
Location: Australia
ISTM that the firmware payload file is "RI_PM863_GA38.fwh". This file appears to be a 1MiB firmware image preceded by an 0x200 byte header. I would guess that you could strip the header and then download the 1MiB image with hdparm. The results may be catastrophic, though. Your choice ...

_________________
A backup a day keeps DR away.


Top
 Profile  
 
 Post subject: Re: SSD firmware hacking.
PostPosted: February 28th, 2018, 5:52 
Offline

Joined: March 19th, 2017, 9:16
Posts: 13
Location: hdlaing
yes ,the file has a header, maybe not 0x200 byte ,only 0x1B0 byte for header


Top
 Profile  
 
 Post subject: Re: SSD firmware hacking.
PostPosted: February 28th, 2018, 9:32 
Offline

Joined: August 13th, 2016, 17:10
Posts: 70
Location: Vienna, Austria
The whole 1MiB file has to be decrypted and sent to the SSD (the Samsung tools are doing both decryption and sending). If you only send the rest, not the first 200 bytes, the signature check on the firmware inside the SSD will prevent loading broken firmware.
The Samsung tools also check whether the firmware actually fits the SSD. If you use hdparm instead of the Samsung tools, this check is circumvented and you have to make sure that it is compatible yourself.


Top
 Profile  
 
 Post subject: Re: SSD firmware hacking.
PostPosted: February 28th, 2018, 14:29 
Offline
User avatar

Joined: September 8th, 2009, 18:21
Posts: 10786
Location: Australia
sourcerer wrote:
The whole 1MiB file has to be decrypted and sent to the SSD (the Samsung tools are doing both decryption and sending). If you only send the rest, not the first 200 bytes, the signature check on the firmware inside the SSD will prevent loading broken firmware.

The file does not appear to be encrypted, nor are they Samsung's tools, AFAICT.

_________________
A backup a day keeps DR away.


Top
 Profile  
 
 Post subject: Re: SSD firmware hacking.
PostPosted: September 23rd, 2018, 13:28 
Offline

Joined: January 21st, 2017, 5:57
Posts: 2
Location: india
Spildit wrote:
Thanks for sharing !
Nice !

I am created a account in hdd oracle with the name gautam.dotcom. But it not accepting password. Please help.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 27 posts ]  Go to page Previous  1, 2

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group