i9300 can unlock on 4.3 version?

[CONCORDIA GSM]

hi
its always show nvm missing when try to unlock.
seems some thing wrong but just update me regarding this issue.
waiting.
have a nice day.

.................................................. .........................................
2013/12/31 - 12:37:12 : Turn-on the Phone Goto 'Settings > Application > Development'
2013/12/31 - 12:37:12 : And Check 'Usb Debugging' Then Connect Usb Cable To Phone And Install Needed Driver.
2013/12/31 - 12:37:12 : -----------------------------------------------------------------------------------------------
2013/12/31 - 12:37:12 : Prepairing ...
2013/12/31 - 12:37:17 : OK
2013/12/31 - 12:37:17 : Device Found!
2013/12/31 - 12:37:22 : Reading NVM ...
2013/12/31 - 12:37:22 : OK
2013/12/31 - 12:37:22 : Prepairing NVM ...
2013/12/31 - 12:37:22 : OK
2013/12/31 - 12:37:22 : NVM File Missing
2013/12/31 - 12:37:24 : Operation Completed
2013/12/31 - 12:37:24 : Operation Time: 00:00:12
2013/12/31 - 12:37:24 : ---------------------------------------------

[Asansam Box]

not supported this version(new security)

solution:
write old modem on phone and use unlock
or
use other box

[Asansam Box]

not supported this version(new security)

solution:
write old modem on phone and use unlock
or
use other box