Related Article: About the security content of iOS 15.7.9 and iPadOS 15.7.9

Error installing iOS 15.7.9 on iPad Air 2. "Unable to install update"

Settings shows update downloaded & will install tonight. Any reason I can't install it now?

iPad Air 2

Posted on Sep 14, 2023 12:31 PM

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Question marked as Best answer

Having downloaded an update, you are normally offered the opportunity to install now, or later. If you select the latter, you have deferred the install for automatic installation during "quite hours".


If you restart your ipad - and revisit the Software Update page in settings - you may be able to install immediately.

Posted on Sep 14, 2023 1:15 PM

5 replies
Question marked as Best answer

Sep 14, 2023 1:15 PM in response to bobfromcleburne

Having downloaded an update, you are normally offered the opportunity to install now, or later. If you select the latter, you have deferred the install for automatic installation during "quite hours".


If you restart your ipad - and revisit the Software Update page in settings - you may be able to install immediately.

Error installing iOS 15.7.9 on iPad Air 2. "Unable to install update"

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