title: Open Settings → Wifi from alert button action in iOS 5.1
body: <p>I want to open Settings from my app's alertView button action with following URL Scheme.</p>
  
  <pre><code>[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"prefs:root=General"]];
              [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"prefs:root=General&amp;path=Network"]];
  </code></pre>
  
  <p>It's working fine for iOS 5.0 but not for 5.1 and above. </p>
  
  <p>Any alternate way to implement this?</p>