samsung s3 i747 unlock done with z3x samsung tool v14.3
select model t989
if modem is set to usb use usb cable for unlocking & repairing.
use this two codes to set need port setting.
*#7284#
*#9090#
Selected model: T989
Selected port: COM3 Z3X BOX Serial Port
Selected port speed: 115200
Reading phone info...
Build: M8960A-AAAANAZM-1.0.443030
Reading security... OK
Calculating... OK
Writing security... OK
Reseting...
Unlock done
Done with Samsung Tool v.14.3
Done with Samsung Tool v.14.3