Iphone wont shut off or open apps

Try a "forced" restart of your 11 Pro Max, using these instructions:--> Force restart iPhone – Apple Support

Regards

Giulio

still won’t shut off. it on Emergency and Medical id with slide to power off . won’t slide due to ((^)) iPhone findable after power off >. I can press the greater symbol, it will then show 6 digit code needed to move forward. I forgot the passcode when Phone started acting a fool and disabled face to unlock. the last detail is the screen is hot and stays lit 24/7.