I could use apple intelligence on my previous iPhone 15 Pro Max but after switching to iPhone 16 Pro Max, apple intelligence was not able to work. I kept the same Apple ID, these two phone are from the same region(Singapore) and I have turned on apple intelligence. And they were both iOS beta software, I just upgraded to 18.1beta7
Running into trouble using apple intelligence after upgrade to iphone 16 pro max from 15 pro max
Hello @DMH54, please refer first to How to get Apple Intelligence on iPhone. If you still have questions, please post in the Apple Support Community for help with Apple Intelligence. The Apple Developer Forums are for questions about APIs and features intended specifically for developers.