Black button
Have a black button on my screen that moves around when I touch it. it opens up a rectangle box that has the words in it notification center, device , things like that. How can I get rid of that please help
iPhone 12 Pro Max, iOS 15
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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.
Force restart iPhone - Apple Support (IN)