4.6.1 hangs, when staring an empty project

I've just upgraded to 4.6.1 and can't run anything, even an empty project. Nothing happens when I run it, until I tap the screen and get ANR. I managed to get a thread dump:

"<1> main@830016443584" prio=5 runnable
java.lang.Thread.State: RUNNABLE
at com.unity3d.player.NativeLoader.load(Unknown Source:-1)
at com.unity3d.player.UnityPlayer.a(Unknown Source:-1)
at com.unity3d.player.UnityPlayer.<init>(Unknown Source:-1)
at com.unity3d.player.UnityPlayerNativeActivity.onCreate(Unknown Source:-1)
at com.test.test.MainActivity.onCreate(MainActivity.java:18)
at android.app.Activity.performCreate(Activity.java:4509)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1050)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2041)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2104)

I have the latest Android SDK:
SDK Tools 24
Platform tools 21
Build tools 21.1.1
SDK level 21
Java 1.7.0_71

The test device is Lenovo A800
Android version 4.0.4

 

I see, let me know if I can help somehow.

This is an old and slow device almost ideal for testing Unity games for Android. Everything was working fine until I updated to 4.6.1

When I enable developer build I also see some output to the device log (strings like developer mode on, etc.); but then it hangs.

 

Yes, it worked. Thank you.

 

Unity 5 beta 18 has the same issue.