jermy wrote:
saltwater wrote:
I have run a head test, and found both heads cant write to SA.
So, maybe I'm right after all ?!
jermy wrote:
saltwater wrote:
i can't write these modules, and changing back dir to original results, i cant write module 04 back.
seams to me heads can read but not write
the fact that you have recovered 3 drives with this HSA before
saltwater wrote:
i have recovered three other WD5000LPVX drives, so the heads were good!
doesn't proof that head can write
Okay jermy you are right, but i'm afraid, write errors made more errors (CRC error) on SA. No matter i change heads or not. With new heads also cant write SA on damaged sectors.
So the result is if heads can read, smart hot swap method could help in this case.
Why i cant write SA on donor drive with patient PCB, except when i exchange ROM 4F module in patient ROM?