title: How to get Unique Device ID for Amazon Kindle Fire
body: <p>To get the Unique Device ID on Android phones/tablets, we use the following:</p>
  
  <pre><code>((TelephonyManager) ctx.getSystemService(Context.TELEPHONY_SERVICE)).getDeviceId()
  </code></pre>
  
  <p>But for Kindle Fire, we can't get one.</p>
  
  <p>Any ideas?</p>