I've got a weird problem with my Samsung S8. It started making a loud beep every 30 seconds or so. I've seen it's a fairly common problem, but the proposed solutions don't work in my case for some reason:
That's it for the solutions I've found on the internet and on this forum as well... does anybody have another idea? I'm currently trying to drain the battery completely and seeing if even WITHOUT BATTERY the problem continues. The next step will be the exorcist I guess.
I'll see if I can't hunt down some things for you to try, @Luke71017 and in the end if we can't fix it, I guess I'll just help you do the exorcism... I've been watching a lot of Supernatural recently.
So, after doing some hunting I've come across a few suggestions that you haven't tried yet.
Can you check to make sure you haven't got Notification Reminders on? Settings > Accessibility > Notification Reminder > Off.