codeigniter - How to use mobile layouts in PyroCMS -

i'm trying use mobile layouts pyrocms choose correct layout automatically if user visiting mobile device.

i have mytheme/views/web , mytheme/views/mobile.
web views loaded should, mobile views not. when use android or iphone simulator don't mobile-views, web-views.

why? there have enable, or there somewhere can go perhaps error message , see why?

mobile safari not added mobile user agents, why wasn't registered