Hello all hdd guru´s
on this month i had receive very strange cases to DR this is another story
WD400BB-75DKA0
On first when i receive the HDD was showing the typical SA problem , not detect on BIOS, and after some time shows DRDY DSC, so on first access, and try to did the backup of SA, but my mistake was not backup the tracks, only modules, the bad modules was smart, translator,logs the typical WD SA problems , so after try to repaired i check it SA again, and find more modules damaged, so i try to put again the backup of modules, and not show any problem while was writing the modules, tried to check SA again, and show more module damaged, so i tried to erase the full SA area with 00h, and write again the modules, not show any problem while was writing again, check again, the SA structure and my GOD al modules show´s with damaged all tracks etc, So im try a hot swap with a Donnor, Same Model, head map etc, i writed P list on donnor and did a regen translator, then try the hot swap, nothing
, so test heads and show´s all heads with damaged, So my another choice i get the Head swap using donnor MHA, well the same problem, not knock , but after some while show´s DRDY DSC check SA again, and still showing the SA with all modules bad, all copies, etc, try to return the heads to donnor HDA, and check SA again, HDD recalibrate OK, detect by BIOS show DRDY DSC, checking SA all OK, So on my last option try to write the ROM on Donnor PCB , check SA again, and all BAD
Any help
Thanks
Sinceraly
Alberto