Open left side menu and not the back button

Hi all, I have a sidebar app and a page where when user click on a button, app exec some functions and then exec:

$state.go('app.inviafoto_ok');

And all works.

Now I need that in the “app.inviafoto_ok” page the back button will be not displayed but instead displays the menu icon. How can I do it ?

Thanks.

M.