WD20EZRX-00DC0B0 SLOW RESPONDING. CANNOT WRITE 0002 MODULE

[SLAB_TEAM0]

Hi,
I have this model with no access to user data. HDD ID is well identified and all modules have been backed up (copy 0+1) without problems. Already checked, modules are all good and module 32 is ok.
Belonging to diablo 3s family, have applyied slow responding procedure as described in ace blog but cannot write 0002 module
So I cannot use head selection using RAM. Infact if I use this tool in union with Data Extractor set to related head, it doesn't work and sectors are all problematic.
Can I exclude any other method before head swap ( at a visual inspection heads seems all ok )?

[Maxim_TS]

Hi SLAB_TEAM0, check the writing by copy 1 as well.
Also try to solve the SR in RAM.

[SLAB_TEAM0]

Thanks for the answer Maxim, I changed heads and had access to both system and user data