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Kalemaroni
 Post subject: Identifying firmware chip
PostPosted: January 11th, 2017, 19:21 
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Can anyone be so kind as to tell me which is the firmware chip on this board (ST2000LM007)?


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2017-01-11 23.13.33.jpg
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Doomer
 Post subject: Re: Identifying firmware chip
PostPosted: January 11th, 2017, 22:14 
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between the TVS diode and the DDR memory chip

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Nick_CT
 Post subject: Re: Identifying firmware chip
PostPosted: January 12th, 2017, 6:03 
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This little guy here?

Image

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Doomer
 Post subject: Re: Identifying firmware chip
PostPosted: January 12th, 2017, 11:23 
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that's the one

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Nick_CT
 Post subject: Re: Identifying firmware chip
PostPosted: January 12th, 2017, 11:36 
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Thanks for that.

What is the world coming to...

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pcimage
 Post subject: Re: Identifying firmware chip
PostPosted: January 18th, 2017, 16:26 
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Joined: November 29th, 2006, 10:08
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Location: UK
And they are pigs to switch to a good PCB, if you're not a soldering wizard anyway!

Did one today, very fiddly!! :-)

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Nick_CT
 Post subject: Re: Identifying firmware chip
PostPosted: January 19th, 2017, 16:17 
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Does the usual heatgun lift it and move it not work?

Maybe I'll fiddle with one tomorrow for giggles.

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Kalemaroni
 Post subject: Re: Identifying firmware chip
PostPosted: January 24th, 2017, 19:55 
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Joined: April 11th, 2016, 11:51
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Location: Brighton, UK
Thanks very much :) Had email notifications turned off for some reason and forgot I'd posted here so sorry for the late response as I've only just read your replies.
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Amarbir[CDR-Labs]
 Post subject: Re: Identifying firmware chip
PostPosted: February 25th, 2017, 7:32 
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Wow ,
PCimage and Nick_CT This Is Just Like a Glass Crystal ,Got One for The First Time Today Man Everything is Locked In These HDD's .Coding Is 25S81 In My Rom

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ledomeni
 Post subject: Re: Identifying firmware chip
PostPosted: September 13th, 2017, 19:30 
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Joined: January 15th, 2011, 9:40
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Location: Fortaleza - ceará - brasil
Now I was in doubt, is this the ROM chip or is it just a glass crystal :?:
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pcimage
 Post subject: Re: Identifying firmware chip
PostPosted: September 14th, 2017, 1:58 
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Joined: November 29th, 2006, 10:08
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Location: UK
It is the ROM chip, I have changed them before... It s not easy!

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nanoic
 Post subject: Re: Identifying firmware chip
PostPosted: January 25th, 2018, 1:38 
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Joined: January 25th, 2018, 1:32
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Location: San Francisco Bay Area
Has anyone succeeded in exchanging this pcb for hdd data recovery? It seems swapping this little crystal ROM isn't enough to unlock the board. Does main controller IC need be swapped as well? Coding in my Rom is 25S81 Thanks.
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Masterclass
 Post subject: Re: Identifying firmware chip
PostPosted: January 25th, 2018, 1:58 
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Joined: May 29th, 2011, 8:47
Posts: 131
Location: Russia
nanoic wrote:
It seems swapping this little crystal ROM isn't enough to unlock the board

What do you mean?
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nanoic
 Post subject: Re: Identifying firmware chip
PostPosted: January 25th, 2018, 11:23 
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Joined: January 25th, 2018, 1:32
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Location: San Francisco Bay Area
With the original pcb, the hdd spins but can't be found by computer. After swapping the bios, the hdd even can't spin. It seems there is an bios in main controller too.
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pcimage
 Post subject: Re: Identifying firmware chip
PostPosted: January 25th, 2018, 15:00 
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Location: UK
nanoic wrote:
With the original pcb, the hdd spins but can't be found by computer. After swapping the bios, the hdd even can't spin. It seems there is an bios in main controller too.


If the HDD spins OK with original PCB what makes you think the PCB is faulty?

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nanoic
 Post subject: Re: Identifying firmware chip
PostPosted: January 25th, 2018, 15:42 
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Joined: January 25th, 2018, 1:32
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Location: San Francisco Bay Area
That chance is low as I’m a chip designer and know how to handle this. Also the donor board can spin the hard drive with its own ROM but not the ROM from the original board. That make me think the MCU might have a portion of ROM as well. Both need be matched.
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nanoic
 Post subject: Re: Identifying firmware chip
PostPosted: January 25th, 2018, 15:46 
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Joined: January 25th, 2018, 1:32
Posts: 7
Location: San Francisco Bay Area
I found the Marvell hdd controller becomes very hot in original board. That makes me think the board has a damaged chip although the motor can still spin.
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nanoic
 Post subject: Re: Identifying firmware chip
PostPosted: January 25th, 2018, 15:55 
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Joined: January 25th, 2018, 1:32
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Location: San Francisco Bay Area
Yes, same board, REV, FW, everything, even ROM footprint.
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Doomer
 Post subject: Re: Identifying firmware chip
PostPosted: January 25th, 2018, 16:44 
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What's the drive's model?
Is it Firecuda?

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nanoic
 Post subject: Re: Identifying firmware chip
PostPosted: January 25th, 2018, 16:57 
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Joined: January 25th, 2018, 1:32
Posts: 7
Location: San Francisco Bay Area
Seagate ST2000LM007 2TB


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37818C23-419E-4693-88D1-C6578D519AAB.jpeg [ 1.41 MiB | Viewed 7264 times ]
B9BBFC06-26CD-480E-99B4-2F8FE18EAEC2.jpeg
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