Developer menu on Android 4.2+
If you recently bought a Nexus 4 or upgraded your phone to Android 4.2 you’ll probably be missing the “Developer options” in your settings menu. Fortunately, Google didn’t remove the developer options from their new version of Android, they just hid it from prying eyes. If you press 5 times on the Build-number in the About phone menu, your phone will recognise you as a developer and the Developer options menu will magically reappear. »