How to shield head and zone WD drives.

[HddDonorMarket]

I have tried shield head cut bad zones and defect list at several WD drives .
But it's done full bad after that tries.

What are the steps for that
How to cut head ?
How to add defect list to P list?

I have searched MRT site and forum and also hddguru. But there is no info

I am doing all for toshiba drives well.
I love toshiba ))

[HddDonorMarket]

I learned adding defect to pList. But I cannot make cut head . What am I missing?

[HddDonorMarket]

(...) What am I missing?

Maybe module 04 ?

Maybe ))