Samsung I337 4.4.4 Unlock Done...[Reference]
Samsung I337 4.4.4 Unlock Done
Rooting procedure: Link for rooting
Follow this Method
1. Flash as pda "I337_NC1_Stock_Kernel.tar.md5" using Odin
2. Use offline "Towelroot-v3.apk" install it.
3. Flash as pda "I337_NJ4_Stock_Kernel.tar.md5" using Odin
4. Install Super SU from Playstore. Set Necessary Permissions.
5. Root Done
Unlocking procedure:
Open Z3x shell then select i337
Selected model: I337
Selected port: COM22 Z3X BOX Serial Port
Selected port speed: 115200
Searching ADB device...
Phone not found
Done with Samsung Tool v.18.6
Selected model: I337
Selected port: COM131 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: 4.4.4
Product code: SGH-I337ZRAATT
Phone version: I337UCUFNJ4
PDA version: I337UCUFNJ4
CSC version: I337ATTFNJ4
IMEI: 356565059997702
Phone S/N: R31DB03KNCR
Checking Super user right... true
Backuping MMCBLK... OK
Checking phone at COM131
Detected ID: 00000FE8 (Unknown)
SW Version:
Reading ESN... OK
Backuping RFNV... OK
Backuping Feature Mask... OK
Backuping NV Item... OK
Backuping Provisioning Item Files... OK
Writing data to phone... OK
Rebooting phone... OK
Waiting phone...
Please, allow USB debugging on phone...
Please, allow USB debugging on phone... OK
Reading phone info...
Model: SAMSUNG-SGH-I337
Android version: 4.4.4
Product code: Not Active
Phone version: I337UCUFNJ4
PDA version: I337UCUFNJ4
CSC version: I337ATTFNJ4
IMEI: Unknown
Phone S/N: R31DB03KNCR
Bypass MSL... OK
Unlocking... OK
Done with Samsung Tool v.18.6

Rooting procedure: Link for rooting
Follow this Method
1. Flash as pda "I337_NC1_Stock_Kernel.tar.md5" using Odin
2. Use offline "Towelroot-v3.apk" install it.
3. Flash as pda "I337_NJ4_Stock_Kernel.tar.md5" using Odin
4. Install Super SU from Playstore. Set Necessary Permissions.
5. Root Done
Unlocking procedure:
Open Z3x shell then select i337
Selected model: I337
Selected port: COM22 Z3X BOX Serial Port
Selected port speed: 115200
Searching ADB device...
Phone not found
Done with Samsung Tool v.18.6
Selected model: I337
Selected port: COM131 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: 4.4.4
Product code: SGH-I337ZRAATT
Phone version: I337UCUFNJ4
PDA version: I337UCUFNJ4
CSC version: I337ATTFNJ4
IMEI: 356565059997702
Phone S/N: R31DB03KNCR
Checking Super user right... true
Backuping MMCBLK... OK
Checking phone at COM131
Detected ID: 00000FE8 (Unknown)
SW Version:
Reading ESN... OK
Backuping RFNV... OK
Backuping Feature Mask... OK
Backuping NV Item... OK
Backuping Provisioning Item Files... OK
Writing data to phone... OK
Rebooting phone... OK
Waiting phone...
Please, allow USB debugging on phone...
Please, allow USB debugging on phone... OK
Reading phone info...
Model: SAMSUNG-SGH-I337
Android version: 4.4.4
Product code: Not Active
Phone version: I337UCUFNJ4
PDA version: I337UCUFNJ4
CSC version: I337ATTFNJ4
IMEI: Unknown
Phone S/N: R31DB03KNCR
Bypass MSL... OK
Unlocking... OK
Done with Samsung Tool v.18.6
