Objects flickering between dark and light

Which shaders are you using on these flickering objects?

Diffuse :)

Just a long shot, but try the $$anonymous$$obile/Diffuse shaders and see if that makes any difference.

ran into this same problem, testing on a 3gs. No luck with a solution, I guess? I've disabled casting and receiving shadows, but no effect, otherwise same scenario as RO$$anonymous$$, single directional light, tried reimporting assets. $$anonymous$$indof out of ideas at the moment, though I'm still groping for more, hoping someone has an idea what's causing this...

Ok, some more info here.

first, dunno how I didn't notice before, but the lighting fails when more than one instance of the prefab is in the scene, but not when 2 are in the scene.

The instances are normally created dynamically by a scene manager. I tried adding static instances in the scene directly in unity, and get the same behavior - but separate for the static and dynamic instances. I.e., one of each, lighting is fine. Add a second of either - static or dynamic - and all of that type go dark. Neither affects the other, though.

Lastly, isolated this as being some sort of problem with the mesh itself, or with the way it's imported; used a unity sphere to build a new prefab with all the same components and settings, and they work perfectly, no problems at all. The mesh was created in blender; I just deleted the default cube, replaced with with a sphere, centered it, and exported. I build a new sphere mesh in blender the same way, got the same problem.

To clarify, as with original question, only happens on iphone, but happens on both my 3gs and in the iphone simulators.

Gotten late, need to call it a night rather than keep beating my head against this until the sun comes up. Will bash on it more tomorrow, and post a solution if I find one. I'm not sure if this is the same problem as the OP, though, so didn't want to create a new question.