How to Flash Samsung Galaxy J7 firmware
7) Once you enter into Download mode, you see an ID: COM port turned blue and Added message in Odin message box means your device has recognized by Odin.
8) If ID: COM doesn’t show means your driver is not correctly installed or try it with different USB cable.
11) Now click ‘Start‘ button and it will start flashing the file. Wait until you see ‘Pass‘ in Green Color on Odin screen. This step will Flash Stock Firmware on Galaxy J7.
So this is the complete guide to Install Stock Firmware on Galaxy J7 in easy steps.