no notification sounds after latest update

[salival]

My s10 phone recently updated to Android 11 with One UI 3.0. And since then I've been having problems with the notifications sounds. I have them ON. I get edge visual notifications but no sound. Luckily my Gear watch informs me. Anyone know of a fix? Thanks. 

[NICKY]

I DON'T GET ANY NOTICE OF ANYONE TEXTING ME ON MESSENGER

[salival]

what's app, Gmail, textra are all silent. it's a big pain.

[Mimo40]

try wiping system cache clears most if not any old files left from old updates.

[salival]

thanks for replying. can't actually find that anywhere. searched on Google and how to geek says galaxy phones don't have a system cache. does that sound right?

[Mimo40]

what phone have you got?

[salival]

galaxy s10

[Mimo40]

Power off the phone 

Plug your data/charger cable in the usb c socket on your phone 

Plug the other end in to a laptop / tablet / headphones .

Press volume up Bixby and power buttons until the android man appears .

Once there use volume buttons to go up and down once on wipe system cache press power button to select then yes to wipe it then goto restart phone.

[Mimo40]

I wouldn't do headphones just laptop

[salival]

sounds like a daytime job. it doesn't lose anything I assume? appreciate your help.