How To Enable IPhone 14 Startup And Shutdown Sound? 

Step 1: Go to Accessibility in the Settings app on your iPhone 14 first.

Step 2: Choose Audio/Visual from the phone's screen's drop-down menu.

Step 3: The "Turn noises on and off" toggle can now be enabled or disabled.

Step 4: Once completed, those beautiful chimes will play the next time you turn your iPhone on or off.