Note that iOS 12 beta is not meant to be stable and may cause unexpected behavior, such as battery drains, app uncompatibility, crashes, etc. If you will encounter such behavior, feel free to downgrade back to iOS 11.4.
Not a developer
If you are not a developer, installing the latest Apple software to your iPhone or iPad is as simple as following these steps. You are about to install iOS 12 public beta, which comes out days after developer beta and is suitable for daily use.
- Make a backup!
In iTunes, click on the device icon and in the Backups pane, select "This computer" and click "Back up now". iTunes will then back up all of your iPhone's data to your computer. This step is necessary to downgrade from iOS 12 beta back to iOS 11.4 without loosing any data and settings.
- Sign Up on the Apple Beta page and log in with your Apple ID.
- Using Safari on your iOS device, go to
- Download and install the iOS beta configuration profile.
- Open Settings app and under General check for Software Update.
Current release is iOS 12 public beta 10.
As a registered Apple Developer, you will need to enroll for the Apple Developer Program first.
- On Apple Developer website enroll using your Apple ID and sign into the iOS Dev Center.
- Register your UDID.
The easiest way to find out your UDID is to plug the device into iTunes, click on the device's icon in the top right corner, view the Summary tab and click on the Serial Number entry to get it to change to the UDID.
- Download and unzip the
.ipswfile and connect your device to iTunes.
- Hold Option on a Mac or Shift on a PC and click the Restore iPhone button on the device's Summary tab. Select the .ipsw file and iOS beta will be installed on your iDevice in a few minutes.
Current release is iOS 12 developer beta 12, which is expected to be the latest developer beta as well.