character material problem in mobile preview

hey guys ,

I have this 3d character which looks pretty fine in shader 5 and 4 preview , but when I try mobile/html5 preview the result of its materials gets messed up as you can see in picture below, its not a problem with number of vertexes , so what I assume is it might be from 3d model shader or maybe I dont have proper openGL s installed .

can anyone help me figure out what it might be ?

thanks a lot .