How to Enable USB Debugging Mode

•  Go to your Phone  Settings option and select About phone.

• Then choose Software Information.

• Scroll down the screen and tap Build number several times until you see a message that says "Developer mode has been enabled".

• Select on the Back button and you will see the Developer options menu under Settings, and select Developer options.

• Enter "Developer Options" and enable "USB debugging" option.

• You will see a messages "Allow USB Debugging", click "OK".