PL-3507: Firmware erased while flashing

  • Thread starter Thread starter wmaster.spider
  • Start date Start date
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wmaster.spider

Hi,
I don't know if my problem has a solution... Well, my problem is, I was
flashing the rom of my external hdd (Iomega hdd 250gb, with the pl-3507
chip) and it failed. now the drive doesn't appear on the pc anymore,
and the flashing prgram doesn't recognize it. I thought of making
windows believe, the drive's there, so i could run the flashing
program. I think the first part is possible, but I don't know if the
flashing tool would work with an imaginary drive. If someone thinks
this could work, could you please explain to me how to make windows
believe the drive's there? And if you've got another idea, please, tell
me. I'm really desperate. The other idea I had was sending the hex file
with the firmware directly through the usb port with a homemade
program. I don't know how this chip works, but I could try...

Thanks
 
Why imagine a dead drive and try to flash it if you can imagine
a working one that's nothing wrong with? Problem solved.

Btw, did google buy Mindspring and renamed it to Gmail?
 
Previously said:
Hi,
I don't know if my problem has a solution... Well, my problem is, I was
flashing the rom of my external hdd (Iomega hdd 250gb, with the pl-3507
chip) and it failed. now the drive doesn't appear on the pc anymore,
and the flashing prgram doesn't recognize it. I thought of making
windows believe, the drive's there, so i could run the flashing
program. I think the first part is possible, but I don't know if the
flashing tool would work with an imaginary drive. If someone thinks
this could work, could you please explain to me how to make windows
believe the drive's there? And if you've got another idea, please, tell
me. I'm really desperate. The other idea I had was sending the hex file
with the firmware directly through the usb port with a homemade
program. I don't know how this chip works, but I could try...
Click to expand...

There is a good chance the drive cannot be flashed without a
functional ROM, unless you flash the chip directly. You see
the flashing-routine itself is likely in that ROM. (ROM usually
gets copied to RAM on boot-up for speed reasons, so you can use
code from the ROM to modify the ROM.) Alternatively, essential
hardware initialisation routines (like the USB driver on the device
side) is in the ROM and the device will not start without it.

The usual way to fix this problem is to remove the flash-ROM chip
and flash it in an external flasher. If the ROM is not in a socket,
removing it is very difficult and usually not worthwhile. If it is
in a socket, there are numerous small companies that will flash you
a matching new one for a reasonable fee if you can provide the ROM
image. Usually these images are just verbatim, in-order flat copies
of the ROM so no special knowledge or equipment is needed to flash
them. Also the flash-ROMs are usually standard industrial types.

Look for companies offering BIOS chips, they usually will flash
pretty much everything for you and they usually have instructions
on how to identify the correct chip on the web.

Arno
 
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