I am having this issue where suddenly my phone stopped giving me notification sounds or system sounds. This spans across all apps. No text sounds no keyboard clicks or even sounds for unlocking. It will vibrate though. Talked to Samsung support and they connected and tried wiping app settings and more. Tried booting to the bootloader wiped cache factory reset mounted system and repaired apps. After all that notification sounds still didn't work. I set up my phone fresh and checked and they did not. What's strange is if you go into volume and adjust the ring tone it will start playing the ring tone. If you touch the notification volume slider while the ringtone is playing you will hear one chime for the notification but if you move it again when the ring tone is not playing it does not make a noise. I can only guess this is some sort of bug in the last update.
Does anyone have a solution or can Samsung let us know when this will be fixed. I'm not the only one
Well believe it or not but this appears to be some sort of hardware bug. I ended up reflashing the firmware using ODIN and sure enough the problem still persisted afterwards. This is also before anything was installed or even joined to my wifi. I am currently sending it in to Samsung repair for evaluation/repair
So here is an update. I ended up having to send my phone in for repair after reflashing it did not fix it. At that point I deemed it to be a hardware issue. Samsung did fix the problem by replacing 2 components in my phone one being some sort of pcb board and the other looked like a speaker or having to do with the speaker. Bottom line is if you are having this issue and factory reset does not fix it you likely need to send it in for repair. Also don't bother with local Samsung repair facilities.
I was having the same issue. I had to go into the Galaxy Wearable app, and under notifications settings for my watch, turn off Mute Connected Phone. Once I did that, the sounds started working again.