Fully new iPhone 14 doesn't work after reboot.

Put it in recovery mode and restore iOS using your computer.

If you can't update or restore your iPhone or iPod touch - Apple Support

You corrupted iOS when you forcibly restarted it before it was finished updating.

Patience is a virtue and interrupting the update while it was loading was not a good thing to do. See what you can do here --> If you can't update or restore your iPhone or iPod touch - Apple Support

If you have a PC do you have iTunes installed? See this for help --> If your computer doesn't recognize your iPhone or iPad - Apple Support

We can't see at what stage you *** with the update, but clearly interrupting it wasn't advisable. Try what the link suggests and you are welcome. You'll get past this.

Ps: There is an issue with the forum, where for some odd reason it doesn't like certain innocent words. What I was saying above is we can't see at what stage you had made it with the update.

Did you type the word "***" and Apple used *** ?

Same thing happens to me, as Apple just changed my post.

Not sure what will happen if I say that the word spelled backwards would be tog

I can't remember exactly what word I typed, but there's a thread about this in WC and CO.

Please STOP using the code insertion button.

Please stop using the code insertion button on your posts.