You meed to plug in either usbC headphones, connect the charger cable between phone and Samsung tablet or plug into a pc/laptop....I use my usbC headphones https://youtu.be/T2HkEa94FRk
After wiping cache etc I was having problems with the fingerprint sensor. I tried redoing my fingerprints , but licking them each time. My fingerprint sensor now works better than before the update. You can even clean the screen and they still work