SSAO and Shadows On Android ( Mobile Devices ) .. Not Working ?

Hello :)

i have tried to active the SSAO From the Image effect package asset and the Shadows it's works fine in the editor but when i build the game to my phone The Shadows and SSAO Doesn't work i don't know why ? i have tried to make the game run on OpenGL ES 2.0 But nothing change ..

i am using Android 4.1 on HTC One X .. And i am using the 30 Day Trail of Unity Pro .