Updated my iPhone 14 Max, and after restart, the screen was locked and would not respond to any touches of the screen. Tried to reboot, but since the screen would not repond when I wanted to put in the passcode, I was stuck. I had to plug in my phone to my Mac, and then push the voluem "up" and then the volume "down" button, folliwng with the power button (long hold until the phone restarted). Once rebotted, all is normal. This was not a good experience if you were traveling and you installed the update and you are now locked out of your phone and don't have access to a computer.