[MobileUI] MobileStyle not change in device

[Caronte3D]

I'm trying to use iOS look in Android app, but MobileStyle(#PB_Mobile_iOS) only affect if running on PC, not on the smartphone.
I read in the OnsenUI docs about it: https://onsen.io/v2/guide/theming.html# ... utostyling
I try things like ons.disableAutoStyling() but SB tell me ons is not defined.
Any help is welcome