To downgrade iOS, you’ll need to put your iPhone into Recovery Mode. First power off the device, then connect it to your Mac or PC. The next step after thatdepends on what device you’re looking to downgrade.

Can you undo an iOS update?

If you’ve recently updated to a new release of the iPhone Operating System (iOS) but prefer the older version, you can revert once your phone is connected to your computer.

How do I revert back to iOS 14 from 15?

Alternatively, you can head to Settings > General > VPN & Device Management > iOS 15 Beta Profile > Remove Profile. But keep in mind that won’t downgrade you to iOS 14. You’ll have to wait until the public release of iOS 15 to get off the beta.