Samsung i337m 4.3 unlock done ...
 

samsung i337m 4.3 unlock done in z3x...thx z3x team...

Selected model: I337M
Selected port: COM395 SAMSUNG Mobile USB Serial Port
Selected port speed: 115200
Searching ADB device...
Please, allow USB debugging on phone... OK
Reading phone info...
Model: SGH-I337M
Android version: 4.3
Product code: SGH-I337ZWABMC
Phone version: I337MVLUEMK6
PDA version: I337MVLUEMK6
CSC version: I337MOYAEMK6
IMEI: 355794051559630
Phone S/N: R31D507AKHJ
Checking Super user right... true
Backuping MMCBLK... OK
Checking phone at COM395
Backuping NVM... OK
Writing data to phone... OK
Rebooting phone... OK
Waiting phone... OK
Bypass MSL... OK
Unlocking... OK
Checking phone at COM395
Restoring NVM... OK
Reseting... OK
Unlock done
Done with Samsung Tool v.17.0