My phone is stuck on preparing for updates

Updating an iPhone 8 to iOS16:

Cancel the update, and then use a computer to update it...

What to Update: Installed apps and the iOS.

How to do so...

1. Back Up First:

IMPORTANT: If you have an option to update, however, then be certain you backup your iPhone first. That way, you will have something to restore your iPhone from should anything go wrong with the update

then...

2. Proceed with the Update:

Go Here:  Update your iPhone Using a Computer - User Tip

wilford80 Said:

"My phone is stuck on preparing for updates: My iPhone8 is stuck on preparing for updates after attempting to download latest software"

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Troubleshooting Apple Watch Updates:

1. Go Here: Update your Apple Watch - Apple Support
2. Scroll to: If you need help updating
3. Proceed from there as necessary.