plus trick

Here are  the steps to enable USB Debugging on your Android phone:

Step 1: Go to the setting in your Android Smart phone running Android 4.3. You will find the icon in your App Drawer.

Step 2: Under Settings, look at the last option, it would be ‘About Phone’. Click that.

Step 3: Under About Phone, you will see ‘Build Number’. Click that about seven ( 7 ) times. this will enable Developer Options on your device.

Step 4: Once you have developer options, come back to Settings and you will find Developer options just about ‘About Phone’.

Step 5: Select Developer options and you will see the option to ‘USB Debugging’. Simply check that and you are have enabled USB Debugging on your device.