The Fur Shader from the community wiki does not work for mobile (OpenGL ES 2.0).
What would be an alternative to create a furry carpet (even with quality lost)?
See Q&A here: Unity3 shader: something's changed? - Questions & Answers - Unity Discussions
Follow link to forum, scroll down to find link to shader. Is this the same one you’re trying? I think the one in the wiki was never updated?