I have already
var owl = $(".owl-carousel").owlCarousel({loop: true, nav: true});
I try change setting of loop or nav option but not working
owl.data('owl.carousel').settings.loop = false;
owl.data('owl.carousel').settings.nav = false;
How to do that thanks.
For Owl Carousel 2 try refresh carousel after change options:
$('.owl-carousel').data('owl.carousel').options.nav = false;
$('.owl-carousel').trigger( 'refresh.owl.carousel' );