From the Home screen, drag down the Notification panel.
Drag down the Quick settings panel.
Tap the Settings icon.
Scroll to System.
Tap System.
Tap About phone.
Scroll to Build number.
Tap Build number seven times.
You may be prompted to enter your device PIN or password. When Developer options has been enabled successfully, you will see a message at the bottom of the screen which states You are now a developer!
Tap the Back icon.
Tap Developer options.
Scroll to USB debugging.
Tap or slide the USB debugging switch to ON.
Tap OK.
You've completed the steps!
