How can I customize the iPhone splash screen?

How can I customize the iPhone splash screen that appears when a Unity-made game starts up? Normally it just says "made with unity".

Only iPhone Advanced users can change the splash screen. The splash screen can be changed using the "iPhone Splash Screen" option in the Player Settings.

Why I can't in mine? I have Unity Pro and Unity IOS, hope I not need some more for this simple option... I see those option in the player pref but can't touch it, either in XCode.

Thx for helping

you need unity iOS pro. unity pro and unity iOS still doesn’t allow you to change the splash screen