OpenCV Camera is not working in Android Device Samsung s2 , camera showing blank screen

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I am using OpenCV Library 2.4.3 JavaCameraView to open Camera. I have using sample project "OpenCV Image Manipulation" which is provided with the openCV Library. App is working fine in Samsung S3 , S4 even micromax ninja, but app will display only blank screen (Black) when i run app in Samsung S2 or Micromax HD

Can you please tell me why it is happening, it is any bug in OpenCV library or this is any other problem

Please Help