Hello rameez , believe or no its disabled from head map , im know on recertifed factory they do that even if u bought a WD i have some WD3200KS with mark R and if u check head maps u find are disabled the bad heads

, now i get solution for DR on this model thanks GOD , and HRT cool!!

At some times have more features, HRT than pci , for WD , its more hard to use it but its very usefull, and more powerfull.
Thanks
Sinceraly
Alberto