Samsung SM-J120G FRP Unlock using Odin tool:
How to Flash SM-J120G:
Make sure your device is atleast 30 percent charged to perform flashing.
• Switch off the mobile
• Press volume down, Power & Menu cable to shift in download mode
• Now open the Odin flash tool
• Select Samsung SM-J120G FRP File.
• Select the Odin tool and open it
• Click AP or PDA then select AP File
• After selection mobile will get detected automatically
• Now click start on system & installation is in process
• After installation mobile switch ON of its own.