Activating Developer options and enabling USB debugging in Android 6.0.1 Marshmallow:
Just follow these 5 simple steps listed below and enable USB debugging in android 6.0.1 powered device. In the new version of android(Marshmallow) “Developer options” are disabled by default because not every Android user is a programmer or a geek therefore Android kept “Developer options” disabled in all Android powered devices. In Android 6 Marshmallow they have made a few changes to the settings page for activating developer options and this quick tutorial will help you activating developer options and enabling USB debugging.
Step 3 :
This is all for enabling USB debugging on Android 6.0.1 (Marshmallow), pretty simple. Do ask in comments for any difficulties you face regarding to android.