Since iOS updated some orientation relatived methods, cocos2d-x games with v2.0.2 and before can't be rendered to correct orientation.

I fixed it in this commit https://github.com/walzer/cocos2d-x/commit/70f1360ac2f0397ae8e32422a3be1d232bebd410
You can update your games simply with the codes below:

1. yougame/ios/AppController.mm. Change this line

1// Set RootViewController to window
2[window addSubview: viewController.view];

 1// Set RootViewController to window
 2if ( [[UIDevice currentDevice].systemVersion floatValue] < 6.0)
 3{
 4    // warning: addSubView doesn't work on iOS6
 5    [window addSubview: viewController.view];
 6}
 7else
 8{
 9    // use this mehod on ios6
10    [window setRootViewController:viewController];
11}

2. In yourgame/ios/RootViewController.mm, we used this method to deal with auto rotation before ios6

1// Override to allow orientations other than the default portrait orientation.
2- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation 
3{
4    return UIInterfaceOrientationIsLandscape( interfaceOrientation );
5}

1// For ios6, use supportedInterfaceOrientations & shouldAutorotate instead of shouldAutorotateToInterfaceOrientation
2- (NSUInteger) supportedInterfaceOrientations{
3    return UIInterfaceOrientationMaskLandscape;
4}
5
6- (BOOL) shouldAutorotate {
7    return YES;
8}