Seagate 5400.6 Heads clicking

[rcz]

Hi,

I have this seagate which has probably fallen. Heads were blocked in the platter and damaged. Platters seems to be intact.
After unblocking and changing heads, the disk click several times slowly, then quickly, then stop and pass to DRD DSC.
It is recognized with 0 Gb capacity but seems nothing is accessible.
I think SA is damaged but I don't know what to do with this F3 disk...

Rodney

[AJ2008]

The 0mb identification is present both when translator is bad, and also when SA cant be read so ID is made from ROM instead. Does the spindle stop before reaching DRDY? Also, can you post terminal report? Usually in cases of physical problems you see message similar to 'RW error = 84150180'. This can help identify the problem.

Also, can you read defect list with 'V4'? If yes then problem could be SA related.

[rcz]

Sorry, I forgot Terminal Log :

Rst 0x08M
RW cmd 002F req = 18 F0 9F E5 18 F0 9F E5 18 F0 9F E5 18 F0 9F E5 18 F0 9F E5 00 00 A0 E1
opts = 00000000

RW Err = 84150180

ASCII Diag mode

F3 T>V4

LED:000000CC FAddr:00259965
LED:000000CC FAddr:00259965

Yes spindle stop, and I have exactly the error you gave. So platter is physical damaged ?

[AJ2008]

Im not sure if platter is bad. The error 84150180 is a hardware reading error, pretty sure it is related to servo. Usually is poor heads causing poor read but in this case if heads were changed maybe you are right and platter is bad.

Did you look at bad heads when you removed? maybe they were visibly damage, or sliders came away? This could help to determine if platter is bad.

[rcz]

For sure bad heads were visibly damaged. In those cases, where heads are very broken, and platter SEEMS to be good, I always hope for good areas... What is more when donor heads are still good even after swapping them.
It seems that it's not for this disk. Thanks AJ