samsung i337 ver 4.4.2 Unlock By Samsung Tool v.17.7

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Selected model: I337
Selected port: COM46 SAMSUNG Mobile USB Serial Port
Selected port speed: 115200
Searching ADB device...
Please, allow USB debugging on phone... OK
Reading phone info...
Model: SAMSUNG-SGH-I337
Android version: 4.4.2
Product code: SGH-I337ZWAATT
Phone version: I337UCUFNC1
PDA version: I337UCUFNC1
CSC version: I337ATTFNC1
IMEI: 356565053699353
Phone S/N: R31D51C17PA
Checking Super user right... true
Backuping MMCBLK... OK
Checking phone at COM46
Backuping NVM... OK
Writing data to phone... OK
Rebooting phone... OK
Waiting phone...
Please, allow USB debugging on phone...
Please, allow USB debugging on phone... OK
Bypass MSL... OK
Unlocking... OK
Checking phone at COM46
Restoring NVM... OK
Reseting... OK
Unlock done
Done with Samsung Tool v.17.7
Done with Samsung Tool v.17.7