Wd1600avvs-63L2b0

[prashantasus]

this HDD.
Modules operation read then error is servo.
But sa region change in rom. Then restart HDD. Drd DSC ready. Loader load. Sa region change in ram. Then all modules read and write ok. Smart clear reli list clear etc.
Head test read and write ok. All modules check all crc is ok in modules. No error in modules. Old rom write. Then tick tick tick.

Pls tell me how to solve this issue.
Data is important