All times are UTC - 5 hours [ DST ]

Post new topic Reply to topic  [ 21 posts ]  Go to page Previous  1, 2
Author Message
 Post subject: Re: PCB swap on a WD10EAVS
PostPosted: January 12th, 2018, 16:20 
User avatar

Joined: December 19th, 2006, 8:49
Posts: 8526
Location: Portugal
If the damaged drive have a PCB without ROM chip (ROM EMBEDED ON MCU) then you could use tools like the following ones to rebuild the ROM by reading the COPY on the SA and write it back to the donnor (new) PCB :

WDMarvel :

a.jpg [ 105.38 KiB | Viewed 212 times ]

SeDiv :

b.jpg [ 60.96 KiB | Viewed 212 times ]


c.jpg [ 72.37 KiB | Viewed 212 times ]

For HRT 3 you would need to READ SA then re-create ROM with HEX editor by manual way explained here - and then write it to PCB this way :

d.jpg [ 54.87 KiB | Viewed 212 times ]

HRT 5 UDMA can DECODE ROYL ROM (or even "older" MARVELL based) but you would still have to use the manual method to rebuild ROM by reading SA first :

e.jpg [ 80 KiB | Viewed 212 times ]

When i do have to rebuild ROM i allways use HRT card + WDMarvel tool as i think it's the easy way for me. You can do it as well without any hardware card as WDMarvel is SOFTWARE ONLY.

What i do is to READ SA first and then use automatic WDMarvel method and then check ROM MODULES with HEX EDITOR and if they look ok (not empty) i write ROM to PCB but make sure first that ROM size is correct by backing up donor PCB ROM first and comparing ROM size with image of ROM (re-build) that you are going to write.

It's very easy if you know what you are doing but can be very complex if you don't understand (fully) what you are doing and you might brick the PCB if you write wrong code to it or if your system does interfeer with the PCB while you are writting ROM (if you don't have hardware based tools like MRT, PC-3000, HRT, whatever ....) This is another risk of software only tools.

1Q9xrDTzTddUXeJAFRn37aqh1Yr6buDCdw - (Bitcoin Donations) - (PayPal Donations)
The HDD Oracle - Platform for OPEN research on Data Recovery.

Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 21 posts ]  Go to page Previous  1, 2

All times are UTC - 5 hours [ DST ]

Who is online

Users browsing this forum: athlesi7 and 8 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