No Ambient Occlusion in Mobile (Android)

I am able to get Ambient Occlusion in Editor.

But When I packaged in Android,It does not contain Ambient Occlusion.

Is there any setting for it?

I had attached Project Settings.

[link text][3]

AO is not supported by Android/iOS by Materials nor by Post Proccess.
-For Materials : Try AO map for FAKING AO effects
-For Enviroment :
- Use Materials with BAKED AO on BaseColor (or mixing on Material)
-Use AMBIENT OCCLUSION for Baking Lighmass

Cheers! Count as an answer :wink:

Any Update on this issues on the new version at this moment is 4.20.3?