Connect your iPhone to a computer and open iTunes or Finder (on macOS). Press the Volume Up and Volume Down buttons, then hold the Side button until the screen goes black. Release the Side button, then press and hold the Volume Down button for 5-10 seconds while continuing to hold the Side button.

The iOS 18.1 public beta comes a day after Apple released a new testing version of the developer’s beta. In addition to iOS 18.1, Apple is also making available the public beta of macOS Sequoia 15.1 and iPadOS 18.1 to Mac and iPad users willing to try Apple intelligence before its release next month.

Apple's iOS 18 will be released today, September 16, with 10am PT predicted as the most likely time for it to go live. The update will introduce new features like new visual perks for iMessages, new ways to customize and color your home screen, and a massive redesign of the photo app. Here's when it's expected to drop in the major timezones: