Deleting software update
How do I delete a software update already installed on my iPhone 6S
iPhone 6s, iOS 14
How do I delete a software update already installed on my iPhone 6S
iPhone 6s, iOS 14
The software updates are not listed in the list of apps.
Then it was already installed and deleted, as JS-1987 suggests.
It is not possible. It is also not possible to downgrade.
If the software was NOT installed, then it can be deleted inside Settings -> General -> iPhone Storage.
That's because it's installed.
Deleting software update