12 pro max shuts down by itself
after ios 16 update, my phone shuts down and restarts with 1 percent almost every 5minutes eventhough whithout using or touching it. I got that important battery message 'Unknown part'. it is so frustrating. i need help. I never changed my battery it was okay before ios 16 PLEASE I NEED HELP!!!!!!!!!!!
iPhone 12 Pro Max, iOS 16