1st root ....
[How-To] Root I337UCUFNI1 4.4.2 (9/18/2014) | AT&T, Canadian Bell, Rogers, Telus, Virgin Samsung Galaxy S 4 | XDA Forums Selected model: I337
Selected port: COM18 Z3X BOX Serial Port
Selected port speed: 115200
Searching ADB device...
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: SGH2I337ZWMATT
Phone version: I337UCUFNJ4
PDA version: I337UCUFNJ4
CSC version: I337ATTFNJ4
IMEI: 359722053043333
Phone S/N: R38F310WC0R
Checking Super user right... true
Backuping MMCBLK... OK
Writing data to phone... OK
Rebooting phone... OK
Waiting 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: R38F310WC0R
Bypass MSL... OK
Unlocking... OK
Reseting... OK
Unlock done
