Try pressing the volume up button, then the volume down button, then press and hold the side button until the Apple logo appears
If the screen is unresponsive, charge the iPhone for at least 15 minutes
Disconnect any accessories or cables
Force restart the iPhone
If the iPhone is stuck on a specific app, close the app and reopen it
Check for iOS updates after the iPhone restarts
Remove recently installed apps if the problem started after installing one
Free up storage space if the iPhone is low on storage
Reset all settings if freezing continues
Restore the iPhone using a computer if the issue is not resolved
Contact Apple Support if the iPhone remains frozen