I downloaded beta can I take it off?

If you don’t see the Restore option, try clicking the three-button button sequence again, and more quickly.

If you have a protective case, temporarily remove it, as a case can sometimes slow down the sequence.

The three button sequence has to be pressed quickly, and the third of the three button-presses then held.

that link again: How to uninstall iOS or iPadOS beta software - Apple Support

Did you maybe run into this?

If you back up a device that has iOS or iPadOS beta to iCloud or your computer, the backup won’t work with earlier versions of iOS or iPadOS. For example, if you go back to iOS 11.4.1 from iOS 12 beta, a backup you made while using iOS beta won't restore. Instead, restore from a backup that you made before you installed iOS or iPadOS beta.

If so, reset your device, and don't restore it.

Click here and follow the instructions. Downgrading will only work during the beta period.

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Yes.

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