why wont my iphone 7 update to iOS 15.71
so i deleted basically everything on my phone but it keeps saying
”Unable to Install Update
An error occurred installing iOS 15.71.
Retry
Remind Me Later”
i rlly dont know what i did wrong, i have enough storage and it is downloaded, just not updated. i cant download anything else now cuz the update is downloaded and sitting in my storage, taking up all of it. i have 1gb left, idk what now.
iPhone 7, iOS 14