frozen on hello screen during setup after update to new iphone 16

I had this same issue when trying to upgrade from iPhone 12 to iPhone 14. It transferred my physical sim to an eSIM. Then it kept getting hot and wouldn't do the update correctly. Then swipe up wasn't working as it reverted back to the hello screen too quickly. Force restart didn't work either. Here is my solution that worked:

Press volume UP then press volume DOWN, then hold POWER button. Keep hold of it even when the apple logo appears. Feels like a minute of holding it down. a new screen should pop up and it should show a laptop logo with a cable. Attach your iPhone to your computer that has iTunes. This will give you the option to update, restore or recover.

I did the update and then recovery. My phone is now working as it should. I hope this helps.

Hello,

Start here:

If your iPhone, iPad, or iPod touch won‘t turn on or is frozen

Then, for any additional issues:

Update your iPhone or iPad - Apple Support

Good luck.

I Have the same problem. When I try to power it off the power off screen flashes but too quick to swipe it. I connect it to my MacBook but it doesn't show up in Finder.