Tab page lost back navigation

@Wall-E, I am not too sure where to add that line. Here the code:

In my page1.ts file, I have a function that calls the tab page (tabsPage.ts)

itemSelected (event, item) {
  this.nav.push(TabsPage, {
      itemInfo: item
  });
}

In tabsPage.ts, the constructor takes care to give all the roots for the tabs.

So, the line that you asked me to replace with would be the one in my page1.ts? If so, it did not work It goes to an infinite loop

loadPage TabsPage: loadIntoLocation

Any hint?

Thanks