s4 i9505 new security v4.3 succesfully unlock
procedure:
you need to patch your s4 using odin
after patch your s4
connect z3x to your pc
open samsung tool
choose correct model
connect your s4 to pc
install driver
and click direct unlock or read codes.
here the screenshot of patch the s4 using odin

screenshot of unlocking

done

android version v4.3
procedure:
you need to patch your s4 using odin
after patch your s4
connect z3x to your pc
open samsung tool
choose correct model
connect your s4 to pc
install driver
and click direct unlock or read codes.
here the screenshot of patch the s4 using odin

screenshot of unlocking

done

android version v4.3