My iPhone 12 is hot and won’t shut off

67BJ Said:

"My. iPhone 12 is hot and won’t shut down"

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Troubleshooting a Frozen iPhone:

Try the Tips at these Apple Support Links:

• If your iPhone is Stuck on the Apple Logo - Apple Support

• If the Screen isn’t Working on your iPhone or iPad - Apple Support

• If your iPhone Won't Turn On or is Frozen - Apple Support

• If you Need More Help - iPhone - Apple Support

Try a forced restart.

• Press and quickly release the volume up button

• Press and quickly release the volume down button

• Press and hold the side button.

• When the Apple logo appears, release the button.

https://support.apple.com/en-in/guide/iphone/iph8903c3ee6/ios