Cool [Q] Unlock s3 GT-I9300

Hi for the past 1 week I have been trying to unlock this GS3. went from 4.1.2 to 4.0.4 still nothing, to paying unlockers for sim unlock codes. Nothing seems to help. Not even the Main Menu
[1] UMTS
[1] Debug Screen
[8] Phone Control
[6] Network Lock
Options [3]Perso SHA256 OFF
the Perso part menu dose not exist
network providers here in my country wownt try to unlock ether. Is there any other method to unlock this G3S GT-I9300 Ver.