WD drives with read only SA

[saltwater]

Hello!
I need some help please!
This week this is the third drive with locked SA.
The drive is a WD10JMVW-11AJGS2
After a head excahnge, and PCB exchange to SATA (I changed U12 too) the drive identified fine, i can read firmware modules with Sediv, but when i would like to write -example modded 02 module- it looks like everyting fine, but when i read the modded module, i see no changes.
Sediv has a feature "SA Unlock", but this not helps.
Maybe somebody here can.
Thank you!

[labtech]

Unless there are underlying issues, there is a high chance HSA is not fully compatible.

[saltwater]

Thank you labtech!
I can access to LBA, but with so many UNC errors in the beginning of LBA-s. The end of the disk, all heads reads blocks fine.
I think there is some media damage on the outer space of platters, and the media damage degraded the HSA.
What is your opinion?

[labtech]

Well, you did not mention that, so then, yes, media damage seems to be the problem.