How to enable USB debugging in Android?
android
Solution
Toggle on "USB Debugging" in the "Developer Options" area of Settings.
If you do not see "Developer Options", go into "About device" in Settings and tap on the "Build number" entry seven times, which will unlock "Developer Options".
As documented on Android Developers: https://developer.android.com/training/basics/firstapp/running-app.html
Problem
How do you enable USB debugging in the Nexus 7 (first generation)? Edit: The accepted answer applies to other android devices also where Developer option is hidden .