Try turning low power mode off?

I’d try turning off the wifi off the phone, shutting off the phone, counting to thirty and trying again..

Normally, I wouldn’t want to interrupt the update process but if it’s been stuck like that for an hour, I’d give that a try…

Count your blessings. I’d not update.

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Update it from a pc

press and release Volume - & + and hold power button for a while, then force shutdown option will be popped up, shutdown your device and restart, then try again for updating it. Hope this will fix it💯

You can update using your computer with an ipsw file, found here.

iOS 16 ruined by iphone. Bought myself an Android because I can't believe my perfectly working iphone x suddenly started lagging and touchscreen became so unresponsive. And i just changed its battery because it inflated for some reason .stay on 15 as long as you can