Samsung i747m Security Code done unlock done by Z3X

First downgrade it to 4.1.1 or 4.0.4

Selected model: I747M
Selected port: COM6 Z3X BOX Serial Port
Selected port speed: 115200
Reading phone info...
Build: M8960A-AAAANAZM-1.0.443072
Done with Samsung Tool v.16.0

Selected model: I747M
Selected port: COM6 Z3X BOX Serial Port
Selected port speed: 115200
Reading phone info...
Build: M8960A-AAAANAZM-1.0.443072
Reading security... error access denied
Done with Samsung Tool v.16.0

Selected model: I747M
Selected port: COM6 Z3X BOX Serial Port
Selected port speed: 115200
Reading phone info...
Build: M8960A-AAAANAZM-1.0.443072
Reading security... error access denied
Done with Samsung Tool v.16.0

Selected model: I747M
Selected port: COM6 Z3X BOX Serial Port
Selected port speed: 115200
Reading phone info...
Build: M8960A-AAAANAZM-1.0.443028
Done with Samsung Tool v.16.0

Selected model: I747M
Selected port: COM6 Z3X BOX Serial Port
Selected port speed: 115200
Reading phone info...
Build: M8960A-AAAANAZM-1.0.443028
Reading security... OK
Searching server... OK
NET lock: #7465625*638*40826284#
Sub lock: #7465625*782*00000000#
SP lock: #7465625*77*00000000#
CP lock: #7465625*27*00000000#
For check lock status: *#7465625#
Done with Samsung Tool v.16.0

Selected model: I747M
Selected port: COM6 Z3X BOX Serial Port
Selected port speed: 115200
Reading phone info...
Build: M8960A-AAAANAZM-1.0.443028
Reading security... OK
Calculating... OK
Writing security... OK
Reseting...
Unlock done
Done with Samsung Tool v.16.0