Step 7. After reading the terms and conditions agreement, hit Install two more times.
Once you perform this action, you will be prompted to install the upgrade by heading to the Settings – General – Software Update section. In a few minutes, you will see the iOS 16 preview build running on the iPhone. Just remember that this is currently only the preview build and as such, the features and functionalities will be a bit half baked. So, we highly recommend that you try this build on an alternate iPhone if you have one at your disposal.
If you are a developer, you can now start developing apps for iOS 16 using the development tools that Apple provides on its official portal.