Bios detects WD2500JS as 0Gb and windows don't

WD Internal Drives Desktop & Mobile Drives
1

Hi guys, my Hard disk power off last week. I replaced the controller board using another one from the same model and now the disk power on, but the bios detects as 0Gb and the operative system don’t recognize.

I tried using external box usb but it’s the same.

can anybody help me? is there any suggestion?

thanks a lot!

2

You need to transfer the 8-pin serial flash memory chip at U12 from patient to donor:
http://image.dhgate.com/upload/spider/e/161/234/e_84wtr2234161_0.jpg

This chip stores unique, drive specific “adaptive” information.

The following PCB supplier includes a firmware transfer service for US$20:
http://www.hdd-parts.com/20091010.html

3

hi fzabkar, thanks for your feedback.

so, as i  understand you , this pcb can not be swapped by another one. is it right? Is it mandatory transfer the firmware?

each pcb only works for one and only one disk?

Thanks!

4

AIUI, you can get lucky with a straight board swap if the “adaptives” are in close tolerance. However, a “ROM transfer” is the only guarantee of compatibility, especially if you wish to continue using the drive.

5

hi, thanks a lot for your support!

I’ll trasfer the firmware chip and then try again. (by hardware)