My iPhone ringer volume is going up by itself
My volume keeps going up all the time. It started after I updated to iOS 14.2 for my work iPhone 6s. Now it goes up by itself all the time. I have restarted my phone many times and it keeps going up, even after I physically turn it down. It typically happens right after a phone call; the ringer will automatically adjust all the way up. There are times however that it will do it after I lock it. I have taken the case off it, I have cleaned around all the buttons, and I have kept the settings the same as before I updated it. What can I do??
iPhone 6s