Hi,

I matched up a chip SET to a failed Toshiba drive.  Every number was the same on the CHIPS for the new chip set I bought, but when I attache it, I got no response from the HDD.  At least with the old chip set, I could extract some data using a data recovery program. 

Does anyone know what it is that I may have missed when buying a new chip set for the HDD?

Thanks,
StrotherDo you mean the Controller board ? ?Yes, the controller board.  How precise does one have to be when ordering a new one?They have to be from the same batch # given on the production line...you should search for a board using those parameters.See also Badcaps Forums http://www.badcaps.net/forum/Hi

You need to swap the firmware rom as well. Also if you were able to recover some data it is unlikely it is an electronic fault so swapping the logic board would not fix it. And on some drives will cause further damage.

If you give the model of drive I will look up where the firmware chip is.

Lisamaree Why do you state replacing the logic board will not work ? ? Sometimes i admit i am befuddled with your replies here...It is a Toshiba laptop drive 500GB. HDD2H28 UL01 T

There is also MK5055GSXN.

Thanks.

I was able to get quite a bit of data recovered from it with the original board.

Anyone here thought of going into the data recovery business and farming out the clean room part?Patio ,

I meant in this case if the drive, with the original logic board was allowing the drive to be accessed, it is very unlikely the drive has a logic board fault. Swapping Logic boards and not swapping the firmware rom could cause in some cases, further damage to the drive. The odds of a logic board swap on a drive over 40gb working are less than 5% so better to check for head damage, media faults and diagnose the logic board before swapping any PARTS like a logic board.

LisamareeHow does someone swap the firmware ROM?Hi

We have had 73 Toshiba 500 gb drives in for recovery with bad sectors. The most important thing is to access the drive, if possible without scanning with recovery software.
Copy off as much data as possible once you have done this then run recovery software or disk repair software.

To swap firmware roms you need a surface mount soldering rework station to remove the chip and resolder it onto the donor logic board. Important that you MARK which IC belongs with which board.

Lisamaree


[recovering disk space, attachment DELETED by admin] Quote

I was able to get quite a bit of data recovered from it with the original board.

Hi

We have had 73 Toshiba 500 gb drives in for recovery with bad sectors. The most important thing is to access the drive, if possible without scanning with recovery software.
Copy off as much data as possible once you have done this then run recovery software or disk repair software.

To swap firmware roms you need a surface mount soldering rework station to remove the chip and resolder it onto the donor logic board. Important that you mark which IC belongs with which board.

Lisamaree

Patio ,

I meant in this case if the drive, with the original logic board was allowing the drive to be accessed, it is very unlikely the drive has a logic board fault. Swapping Logic boards and not swapping the firmware rom could cause in some cases, further damage to the drive. The odds of a logic board swap on a drive over 40gb working are less than 5% so better to check for head damage, media faults and diagnose the logic board before swapping any parts like a logic board.

Lisamaree

I still don't quite get your logic on this issue...