Problem with humanoid rig

I have a problem with a model rig, I'm trying to import in Unity as Humanoid, but something go wrong and the body rotate 180º after rig (foot are the unique part correctly rigged)

I trying to fix it inside Unity (rigging it manually, assigning all bones), but anything works

I tried mixamo rig tool and assigning manually all bones, but nothing

Some screenshots:

https://drive.google.com/file/d/0B34UJCvyvo0qSmFiUjBBdWJaaHc/view?usp=sharing https://drive.google.com/file/d/0B34UJCvyvo0qdkVoeTI2QnNUcWc/view?usp=sharing https://drive.google.com/file/d/0B34UJCvyvo0qUVh0VlFrUDI2dFU/view?usp=sharing

That's the model

I need this rig, because another models use the same rig, so if i can fix it, I will apply the same in others

Thanks in advance