Shadows and mobile games

Hello unity-forum! Have some problem with shadows in unity client and in Android device. The problem is when i doing something in unity its ok all shadows shows properly.

But after i made .apk file and installed it on my HTC m8 i cant see any shadows at all just if they were swicthed off.

So… Can anybody please help me showing which options must be choosed to run game correctly on android device with all shadows on?

And if anybody can help as well with options to avoid those “ladders” below, it will be very helpful! I tried all i know to minimize these “ladders” but still it isnt enough:(