Due to power surge my hard drive got damage it wont turn
on..then i took to the local hdd recovery they replace Tvs didoes and then hdd
turn.Motor star spinning but it making clicking sound and not detecting on bios.
I replace the u12 ic with identical pcb but same problem.
any solution????


MDL:WD30EZRX-00MMMB0
Western Digital:2060-771698-004 REV-A
Board Number: 2060-771698-004
Main Controller IC: 88i9146-TFJ2
HDD Motor Combo IC: L7251 3.1

Find a new recovery shop.

if you care about data stop DIY

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Tawfeek Mokhtar
http://alsafwapc.net
Alsafwa Data Recovery Egypt

then what is the soultion...its firmware corroputed?

will PC3000 help??

Clicking sound is most likely a read/write heads damage. If you care about information you have there take it to data recovery company. Otherwise send it to WDC for warranty replacement.

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Hard Drives For Sale

Largest hard drive supplier for data recovery purposes
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If D3 and R67 were damaged, then the most likely culprit is a damaged preamp. That means the drive needs a head swap. Not DIY. :-(

_________________
A backup a day keeps DR away.

any other soultion??

Apart from backing up your data before it failed. No.

I notice in your original post that you say that the shop replaced the TVS Diodes, but you swapped the U12 to a new PCB....... I really think it would pay you to make sure that the shop actually replaced the TVS diodes and didn't just swap the PCB, and that you in fact had the original PCB back with the original U12 on the drive when you received it back from the shop and before you started to work with it....

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East Anglian Data Recovery Services
http://www.eadr.co.uk

"If it's your only copy - then it's not a backup!"

Compare the date codes on the PCB and ICs against the date code on the label.

_________________
A backup a day keeps DR away.

local hdd recovery shop replace tvs diodes then it start working but making soft clicking noise and not detecting in bios.The He suggest me to get same identical pcb.

Here is the picture of pcb