My tendency would be to hook up an external USB device, make sure the data's flowing, and jab pads with a scope probe... You see data, or you don't... You know, I've got a scope (or two) at home; I'll give it a shot.

One other possibility in the sneak-cables-under-the-kickstand line is to replace the kickstand with a bulged model... Yeah, you get to make it yourself. Isn't modding fun? (I have access to a machine shop; if I had time, I could just go do it. Few are so blessed.)