My S8+ just started beeping upon wakeup. I found the issue. I have a Speigel phone case which holds 2 credit cards. I just replaced my debit card and it has the "tap to pay" feature now. Turned off the NFC on my Samsung and the beep issue is fixed.
Found to be helpful from a different thread......
Stujoe says:
Aren't the User Interfaces quite different? I would think the most immediate way to tell is from the difference between a first and second generation is in the home screens. The Text Links at the top are different. The First gen...