How iPhone 5 + iOS6 will decide if an app must be run in letterbox mode

Question

How the iOS6 decides if the app must be run in letterbox/compatibility mode on iPhone 5? Is this a build settings parameter (like the \"Targeted device family\")? Or all app

Answer 1

I didn't try adding the splashscreen (special because I didn't have any image by the time), but instead just went to the

Target General settings -> App Icons and Launch Images -> Launch Images Source

and created a new catalog. Didn't add any image to it, just run the application and the black bars were gone.

Hope this helps anyone.