title: 'Unable to download JS bundle' error on Android 4
body: <p>I'm working on React Native on Windows and I have a problem on my phone (Android 4.1.2).</p>
  
  <p>I am following the quick start tutorial but, i have a problem in the guide "Running on Device". (<a href="http://facebook.github.io/react-native/docs/running-on-device-android.html#content" rel="nofollow noreferrer">http://facebook.github.io/react-native/docs/running-on-device-android.html#content</a>)
  I can't use adb reverse because I've Android 4.1 and not Android 5.0+. If I try, I have an error: closed.</p>
  
  <p>My question is about the second part : Configure device to connect to the dev server via Wi-Fi.
  When I go to "developer options", I don't understand how I can write my machine's IP address. I can access to my development server with my phone's browser but, in my app, I have just red page with the error "Unable to dowload JS bundle".</p>
  
  <p>How can I try to resolve this error ?</p>
  
  <p>Thanks</p>