What will be the best light baking settings when baking for mobile devices in Unity 5

I am trying to bake a scene with for mobile devices. I have kept mixed settings for lights in directional light and kept the resolution to 4 in General GI. But the baked shadows are so bad that. Everything is looking dark and unnecessary dark spots are there. This didn't happened with beast light baking system in Unity 4. I can't proceed with my work. Everything is so bad. Do anyone have a workaround or solution! See the screenshots

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