title: iOS 6: UUIDString on iPhone 3GS
body: <p>I've been working on <code>ASIdentifierManager</code> framework to get the new <code>UUIDString</code>, the identifier should replace in iOS 6 the UDID, and can be stopped or not by the user for Settings.</p>
  
  <p>Everything is ok on simulators and iPhone 4S, but on iPhone 3GS (it's iOS 6 updated!) I'm getting as UUIDString the following:<br>
  <strong>00000000-0000-0000-0000-000000000000</strong></p>
  
  <p>This is how I'm getting it:</p>
  
  <pre><code>if ([ASIdentifierManager sharedManager])        
      NSLog(@"%@", [[[ASIdentifierManager sharedManager] advertisingIdentifier] UUIDString]);
  </code></pre>
  
  <p>Does anyone know why? Have you encountered this problem?</p>
  
  <p>Thanks</p>