Connect your iPhone directly to a computer, running iTunes/Finder, and then, try updating again.
Ref: If your iPhone, iPad, or iPod touch won't update - Apple Support
You can make a difference in the Apple Support Community!
When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.
When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.
Connect your iPhone directly to a computer, running iTunes/Finder, and then, try updating again.
Ref: If your iPhone, iPad, or iPod touch won't update - Apple Support
Connect your iPhone directly to a computer, running iTunes/Finder, and then, try updating again.
Ref: If your iPhone, iPad, or iPod touch won't update - Apple Support
iOS 14.7 is no longer current, and might not (is not?) still getting signed.
You can delete that (Settings > General > iPhone Storage), and re-download iOS 14.8, and maybe get further?
Why do i cant install the iOs 14.7 saying “cant install no longer connected to internet” even tho im connected on a wifi?