Facebook SDK for Unity 5.0.2 Beta doesn't work on Android Device

Unity: 4.3.1 Device:Samsung I9300 Facebook SDK for Unity: 5.0.2 Beta

When I use Facebook SDK for Unity 4.3.6, this works well.

When I use 5.0.2 Beta, it does not work. When I run FB.Init on device, it shows

The Facebook Dll : not Loaded

Facebook settings are the same as in 4.3.6, but I changed the Class Name com.facebook.unity.FBUnityPlayerActivity to com.facebook.unity.FBUnityDeepLinkingActivity in the facebook.com. But this doesn’t work either.

Its answer available here