jQueryMobile change page API has been changed and seems like there is a problem with the actual page change. Here is snippet which make it work.

jqmChangePage.js

//The options object must have set, changeHash:true, as in the first example
//1
$.mobile.pageContainer.pagecontainer("change", "pageID", { reload:true, transition:'flow', changeHash:true });
//alternates
//2
$(":mobile-pagecontainer").pagecontainer("change", "target", { options });
//3
$("body").pagecontainer("change", "target", { options });