How can we repair the damage after the update?

Hello yaren196,

To help you solve your issue let's perform the steps here: If your iPhone won't turn on or is frozen - Apple Support

1. "Press and quickly release the volume up button.
2. Press and quickly release the volume down button.
3. Press and hold the side button until you see the Apple logo.
4. 
5. If your phone doesn't turn on, follow these steps to check your hardware and charge your phone. You might need to charge for up to an hour.
6. If your phone still doesn't turn on, contact Apple Support."

If the issue persists, Contact Apple for support and service

Cheers.

On September 28, 2022 , I updated my iPhone 12 Pro. 2 days latter, my phone out of warranty, stared to get really hot and the screen turned black and never turned on again. I have heard of 2 other phones of people I know that have had the same issue.