I\'ve just started on iOS programming and so far the tutorials and answers I found here have been a great help to move forward. However, this particular problem has been bum
With the main storyboard already loaded, it's just a matter of finding its reference so that I can instantiate another root view controller:
UIStoryboard *mainStoryboard = self.window.rootViewController.storyboard;
self.window.rootViewController = [mainStoryboard
instantiateViewControllerWithIdentifier:@"view-controller-id"];