Hello,

I do not know if it's not addressed now, not very good English.
Disk after hitting began to chatter. It does not show in the BIOS. I assume that clicking noise causes damage to the reading head. I would try to replace the head. I'm just not sure if it is necessary to get the exact same disk including firmware or you just like disk. I also want to ask if after replacing the heads is necessary to calibrate a terminal or through some deleted information from the disk. Disk was before the crash in bios password protected, it will make a problem? Password course I know.

I'll be glad for any advice. Please help.

Thanks so much in advance.

You need experience and clean room enviroment to make heads exchange.

If you hace not, better contact with a local pro. Execially if you data is important, because if not most probably your data will be gone

This is difficult case, to change heads in this model, even for some pro's.

Chances of DIY recovery is close to 0%.

Strongly advise see pro assistance on this case.

_________________
PC Image Data Recovery
http://www.pcimage.co.uk

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It is clear to me that it will not be easy. But at least try something than nothing. Still out on what can optionally be careful?
I know you must be careful to netuknout heads on each other or on the surface. Why should a 0% chance?

agree with pcimage
if your data important for you
you should give it to pro. DR
and don't try to change heads by yourself
or you will lose every thing

_________________
http://www.hpwlab.com