For your Android device needs to have USB Debugging enabled.

Android 2.x - 3.x devices:

Go to Settings > Application > Development > USB Debugging.

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Android 4.x devices:

Go to Settings > Developer Options > USB Debugging.

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NOTE: For the Samsung Galaxy S4 running 4.2.2, you may need to unlock Developer Options before it is available within the Menu:

  1. Go to Android home screen.
  2. Pull down the notification bar.
  3. Tap "Settings"
  4. Tap "About Device"
  5. Tap on the "Build Number" button about 7 times.
  6. Developer Mode should now be unlocked and available in Settings > More > Developer Options

A special note about the Kindle Fire and the Kindle Fire HD:

  • Kindle Fire always has USB Debugging mode on.
  • You can enable USB Debugging on the Kindle Fire HD by pulling down the notifications drawer, tapping More > Security > Enable ADB