An error occurred installing iOS 16.4.1
iPhone 8 Plus
iPhone 8 Plus
Your iPhone is running 16.4.1 but the most recent version is 16.6. If this error is persisting, when installing 16.6 please try and update via a pc or Mac instead
Update your iPhone using a Mac with macOS Catalina or higher
On a Mac with macOS Catalina or higher, you will use the finder in order to upgrade your iPhone. Make sure to Back up your device before starting the upgrade process.
On a Mac with macOS Catalina or later, you will follow the following steps:
Update your iPhone via a Mac running macOS Mojave or earlier, or on a Windows PC
On macOS Mojave or earlier, or on a windows machine, we won't use the Finder to upgrade your iOS
Instead, we will use iTunes. Make sure to Back up your device before doing any update or upgrade to your phone.
Updating/upgrading your iPhone - Apple Community
An error occurred installing iOS 16.4.1