After the release of iOS 12.1 beta 3 to registered developers, Apple again released the third public beta for iOS 12.1 to software testers on Tuesday, Octobet 9 just hours after Apple released iOS 12.1 dev beta 3.
Also read: iOS 12.1 Beta 3 is released to Developers
You need to be a public tester with a valid configuration profile before you can download and update your iPhone to iOS 12.1 public beta 3. If you already have iOS 12, and your "Automatic Updates" is enabled, you can let the software update overnight. To download the beta, launch "Settings" > "General" > "Software Update" > "Download and Install". Then follow the on-screen prompts to fully download and install iOS 12.1 Public Beta 3. Enjoy!
