I am using NGUI 3.6 and unity 4.5.5, when I am building my game on note 3 only black screen is coming. graphics level is Automatic. When I am changing Graphics level to OpenGL ES 2.0 I am able to see my game on note 3 but its very slow even buttons are responding properly.
I was also having the same problem I solved it by searching and keeping the texture , images and atlas to 2048 *2048 or less hope you are also doing the same mistake of using the size more than it.