unity 3d backing does weird texture

Question

I have a model with 3 elements, each one has a different texture, when in real time everything looks awesome (both in designed and playing) but if I go and bake my lights I get the ugly mess you can see in the bottom part of the picture.

I'm pretty new to blender/unity. The game is aimed to android phones (google cardboard)

BAKED GI true

• Using: Blender 2.7
• Unity 5
• Backed resolution 1 (increasing doesnt help)
• Baked padding 2
• Compressed true
• Indirect Resolution 2
• Ambient occlusion 0

I don't even know what parameters are really helpful here. Can someone help?

Answer 1

Setting Generate Lightmap in the importsettings should solve the problem.