On your device: Download the configuration profile directly onto your device and follow the installation instructions.Download the configuration profile from the download page.Note: Your iPhone must be signed in with the Apple ID you use to sign into to the Apple Developer website in order to access the beta software. When a new developer beta is available, you can install it from Software Update.Go to Settings > General > Software Update > Beta Updates and choose the Developer beta.
IOS beta software For devices running iOS 16.4 or later