My iOS 16.7 doesn’t want to update

We do not know which iPhone model you want to update to iOS 17,

Eg:

See: iPhone models compatible with iOS 17 - Apple Support

Wondering if you got an error message when you tried to update ... if so, that may help troubleshoot:

Eg: You may need to check your iPhone has enough free space for the update:

How to check the storage on your iPhone and iPad - Apple Support

and what to do: If you need more space for an update on your iPhone, iPad, or iPod touch - Apple Support

Else: Please see: If your iPhone or iPad won't update - Apple Support

If you see the Apple logo with progress bar after updating or restoring iPhone, iPad, or iPod touch - Apple Support

Else: You might want to try updating using a computer

• Update your device using a Mac with macOS Catalina or later
• Update your device using a Mac with macOS Mojave or earlier, or a Windows PC