I don't know if its a bug in unity 5.3.1 personal edition or I am doing something wrong. I once put a splash image which appears fine in beginning but now I have removed it, even deleted it from project/asset folder. Now when creating new build for iPhone/xcode, I don't know how but unity brings the same old splash image every time. I have tried changing the image. but it still shows old one. Even in xcode I can surely see the new image everywhere but on device, its always old one. I have tried cleaning xcode project and deleting app from device.