What you need To set up your new iPhone with migration assistant, both devices must be on iOS 12.4 or newer — that includes iOS 13.

Tap Erase iPhone to begin the wiping process. Let your iPhone do its thing, and if completed correctly, you’ll eventually see the iOS Setup Assistant upon startup.

Here’s how to download and install iOS 13 beta: First back up your iPhone and iPad: Open Settings > Tap your Apple ID account on the top of the screen.