Working example of loading scene as asset bundle in Android!?

Hi :) I can't get my asset bundle scene to works! It works only in editor mode, when i'm following the example in documentation.(simulation mode enable) I have a scene, and menu with button in it (each button points to different scenes). When i click a button i want to go to the selected scene. Everything work fine, both in editor and on my android device. So i want to make my scenes to be asset bundles and to load them outside the build.

         // Load the AssetBundle file from Cache if it exists with the same version or download and store it in the cache
         using (WWW www = WWW.LoadFromCacheOrDownload(BundleURL, version))
         {
             yield return www;
             if (www.error != null)
                 throw new Exception("WWW download had an error:" + www.error);
             AssetBundle bundle = www.assetBundle;
             //AssetBundleManager.LoadLevelAsync(sceneAssetBundle, sceneName, true);
             if (sceneAssetBundle == "")
                 Instantiate(bundle.mainAsset);
             else
                 Instantiate(bundle.LoadAsset(sceneAssetBundle));
             //bundle.LoadAssetAsync(sceneAssetBundle);
             Debug.Log("successfull!");
             // Unload the AssetBundles compressed contents to conserve memory
             bundle.Unload(false);
 
         } // memory is freed from the web stream (www.Dispose() gets called implicitly)

this way nothing happens.... I can get scenes loaded in simulation mode with this code, but this works only in editor

 AssetBundleLoadOperation request = AssetBundleManager.LoadLevelAsync(sceneAssetBundle, levelName, isAdditive);
                 if (request == null)
                     yield break;
                 yield return StartCoroutine(request);

Can some one give me an advice how to load asset bundle scene ?!?! Can't find any working example... THANKS A TON :)