"Powered by Unity" splash orientation faces landscape on iPhone even when portrait is included in autorotation

Hi!

I have Unity 4 iOS Basic.
I want my game to have autorotation in all orientations. The “powered by Unity” splash apparently faces landscape on iPhone even when portrait is included in the settings. This means that when the iPhone’s orientation is locked to portrait, the splash faces landscape which just feels wrong, and is probably one of those little things that Apple would reject an app for. =)
I tried “fixing” this by building for portrait only (and thus getting a portrait splash) and then enabling the other orientations in XCode, but that didn’t work - the device only seems to rotate to orientations specified in Unity. Is there something else I can do in XCode to enable/disable orientations after building from Unity, perhaps by editing some code?

Besides allowing the rotation to a certain orientation, you have to set the default orientation to “Auto Rotation”.