Using Android Studio with the Samsung Galaxy S4

Even when you think this should be easy to use, there are a couple of things you have to be aware of:

• Install the corresponding Samsung USB Driver. You can click here to get it from the official Samsung Page.
• Activate the hidden developer options on you S4 (or any Android 4.2+). Check this link for more info but basically you have to: 

1. Go to Settings & About Device and scroll down to the Build Number. 
2. Now, tap on your "Build Number" 7 (seven) times, and you should see a toast notification pop up saying "Developer mode has been enabled." 
3. Back out of the About Device menu and you'll see Dev options back where it belongs, so you can turn on USB debugging and whatever else you want to.