Phone does not make any notification sounds

[iisai]

In the last 24 hours, my phone (Galaxy S21 5G) has stopped making notification sounds.  I get the notifications, and it vibrates briefly, but there are no sounds with the notification.  I've checked all the obvious things including: 

• Verified the phone is not on mute or vibrate, and the volume is up to max on Ringtone, Media, Notifications, and System
• Checked that there are no App settings that mute or lower the volume
• Do Not Disturb is not on
• Separate app sound is off
• I'm updated to the latest Android version (Software version = G991U1UES8EWG3)
• I've restarted the phone
• I've reset all the Settings to default
• I've cleared the cache and data for the app I need most (Opsgenie)
• The speakers on the phone work (media sounds play)

Another odd thing is that when I go to Settings > Sounds and vibration > Notifications where you can select the sound, nothing plays when I select different sounds. It does work on Settings > Sounds and Vibrations > Ringtone.  I've restarted the phone in Safe Mode, and this behavior is unchanged.

When I go to Volume settings, and adjust the volume on the different types of sound, Ringtone and Media always play when the volume slider is adjusted.  Notifications will play once, if I change it's volume after Ringtone or Media, but then stop for all future adjustments until I adjust Ringtone or Media again.  System never makes any sound.

I'm specifically concerned about the app Opsgenie, since I need to hear on-call alerts for work, but none of the app notifications are making any sounds.

[JBTechfanatic]

What you want to do is open the entire sound panel you will notice that there's different categories the one I circled is the one you want to be turned up to get notification sounds to access this menu press volume up then press the 3 dot settings symbol at the top of the volume bar that you first see. as well as of course as you stated before making sure they are set to notify you

[iisai]

Thank you, yes, the volume is up to max on all of them, including Notifications.  It still doesn't make any Notification sounds.

[iisai]

Found an article on this problem indicating it's happened before... unfortunately, none of the suggested resolutions work for me (except I haven't yet resorted to a complete factory reset): https://backtodefault.com/samsung-galaxy-s21-s22-no-notification-sound/

[user1i4ACcechb]

Have you found a fix yet? Just purchased a refurbished s21, did all updates and have no sound on notifications. Thanks

[dartdiva72]

I'm having the exact same issue on my Samsung S23 Ultra. Tried everything suggested and still no notification sound. All other sounds work Ringtones, audio from videos etc

[bill-e]

Have you tried to boot to Safe Mode and see if the sounds work then?  That should eliminate any app causing the issue.  If they work, then you're in for the tedious job of uninstalling apps till things start working... or a Factory Reset. 

EDIT: and I assume that you're not running the beta. 

[iisai]

I have tried running in safe mode. There was no change in the notification sound behavior.

[Markg2004]

Exactly the same issue and nothing suggested has rectified it. And I've looked for ages...anyone had any luck?

[userZnlrQXvwTK]

This truly frustrating, I have same issue, I notice if I have bluetooth setting on I've had the Galaxy S3, S5, S8, S9 and now S21 Ultra... What a disappointment. I've never had so many issues with phone until this model. I've missed important notifications, Samsung is no help.