My hard disk 120 GB Western digital got eletrick shock and therefore it wouldnt spin and start at all. I talked to few data recovery specialists to help me out. They were asking $800 plus amount which i couldnt afford. So i had a 40gb hard drive with same logic circuit board as my bad hard disk had, i replaced the circuit board, the drive started to spin but
was making clicking noise. I opened the lit or disk cover to see what is making the noise.
I found the head/read/write arm was clicking. I am not sure whether my head arm is bad ?.
The concern i have is whether i erased the disk data after i open the disk lid or cover (a cover with 4 screws).
Any epertise opinion. I am not sure opening a disk lid or case will erase the data automatically. Also i want to know
whether data will be recoverable or not if i replace the head arm.
How can i stop head clicking by downloading any firmware software.
Please give me your input .