Google map v2 show black screen

Hi! I created android app for android phone (version 4.1.1) I use google map v2 for my app, but I see black screen instead of map. Does anyone know how to solve this problem?

I just - create project and add google play services library from last version of MapsAndLocationDemo_v2 ), - set all permissions for app - get map v2 key use keytool and debug.keystore

I reproduced bug in this video

Activity code with map http://pastebin.com/7AzYY63p

Layout xml http://pastebin.com/9UxrdTam