glTexParameter on Android -> OpenGL Error

I have a strange problem when using the above mentioned method:

gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_LINEAR_MIPMAP_LINEAR);

While this works great on the Android emulator I get an Open GL error on the actual device (samsung galaxy). The error is GL_INVALID_VAL开发者_开发百科UE (Code 0x501).

Why is that?

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GL_TEXTURE_MAG_FILTER doesn't take anything other than GL_NEAREST or GL_LINEAR