6. Once you authorize the download, open the Settings app on your iPhone
7. Along the top, you should see message saying you have a profile ready to be installed; tap that and install the profile as seen in the screenshots above
8. Your iPhone should now restart to complete the profile installation
9. Once your iPhone has restarted, go to Settings > General > Software Update. You should now see the iOS 13 update ready to be installed.
Once you’ve completed the initial install of the iOS 13 public beta, you’ll receive updates over-the-air just like you would for any other iOS version.
Compatible devices
First, make sure your device is capable of running iOS 13. While Apple is noted for supporting older devices with new software updates,
some older iPhones that were eligible for iOS 12 will not be getting iOS 13. The following iPod Touch and iPhones support iOS 13: