Update the ios 17 version in 8 plus mobile

An iPhone 8, iPhone 8 Plus, or iPhone X isn't capable of 17 or above; they require an A12 or better CPU. To install 16.7.10, use a computer or the Software Update function in Settings.

If your unit is actually on 11 as noted below your post, you'll probably need to update it from a computer.

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Mdhilwan wrote:

iphone 8plus not run in to ios 17 version

The iPhone 8 Plus is not compatible with iOS 17 or higher.