Samsung i337 Root and Unlocked on z3x

Samsung i337 Android 4.3 Root on Kingo Root and Unlocked on z3x

Hi All

here is the full info about unlock this AT&T carrier Samsung S4 i337

1. Root on Kingo Root.

2. Take QCN Backup before unlock if something happen wrong in process.

3. Direct unlock on Z3X tick on new security.

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