Data recovery and disk repair questions and discussions related to old-fashioned SATA, SAS, SCSI, IDE, MFM hard drives - any type of storage device that has moving parts
January 11th, 2017, 19:21
Can anyone be so kind as to tell me which is the firmware chip on this board (ST2000LM007)?
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- ST2000LM007 PCB
January 11th, 2017, 22:14
between the TVS diode and the DDR memory chip
January 12th, 2017, 6:03
This little guy here?
January 12th, 2017, 11:23
that's the one
January 12th, 2017, 11:36
Thanks for that.
What is the world coming to...
January 18th, 2017, 16:26
And they are pigs to switch to a good PCB, if you're not a soldering wizard anyway!
Did one today, very fiddly!!
January 19th, 2017, 16:17
Does the usual heatgun lift it and move it not work?
Maybe I'll fiddle with one tomorrow for giggles.
January 24th, 2017, 19:55
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.
February 25th, 2017, 7:32
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
September 13th, 2017, 19:30
Now I was in doubt, is this the ROM chip or is it just a glass crystal
September 14th, 2017, 1:58
It is the ROM chip, I have changed them before... It s not easy!
January 25th, 2018, 1:38
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.
January 25th, 2018, 1:58
nanoic wrote:It seems swapping this little crystal ROM isn't enough to unlock the board
What do you mean?
January 25th, 2018, 11:23
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.
January 25th, 2018, 15:00
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?
January 25th, 2018, 15:42
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.
January 25th, 2018, 15:46
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.
January 25th, 2018, 15:55
Yes, same board, REV, FW, everything, even ROM footprint.
January 25th, 2018, 16:44
What's the drive's model?
Is it Firecuda?
January 25th, 2018, 16:57
Seagate ST2000LM007 2TB
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