I have just bought an unlocked 64 gb iPhone 5S to replace my (even older) 16 gb iPhone 5S. I backed up the old iPhone to iCloud. I then inserted my SIM-card into the new iPhone, updated the new iPhone's operating-system from iOS 9 to iOS 11.3, and launched Update iCloud Settings. Both of those activities took many hours, but I do not know whether that is relevant. My difficulty now is that (1) the new iPhone has got none of my iMessages or texts; (2) only a selection of my audiobooks has been transferred; (3) some of the audiobooks have been transferred only incompletely, so that in some cases at least half the book is missing; and (4) none of the audiobooks can be listened to without first downloading it to the new iPhone. Why should this happen, and is there any way around it ?