If for some reasons, you don’t want to use the Automatic setting initial view control feature of Storyboard, here is the solution

Step 1: Make sure that view controller (the view controller you want to make it initial) has StoryboardID

Step 2: Disable that view controller ‘s Is Initial View Controller

Step 3: Remove Main storyboard file base name value in app Target Info

Step 4: Some code in AppDelegate.m

[code language=”objc”]

• (BOOL)application:(UIApplication )application didFinishLaunchingWithOptions:(NSDictionary )launchOptions
  {
  UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:@”MainStoryboard_iPhone”

  bundle: nil];
  

  MainViewController mainViewController = (MainViewController)[mainStoryboard

  instantiateViewControllerWithIdentifier: @"SBMainViewController"];
  

  UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:mainViewController];

  self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
  [self.window setRootViewController:navigationController];
  [self.window setBackgroundColor:[UIColor whiteColor]];
  [self.window makeKeyAndVisible];

  return YES;
  }
  [/code]