Are quite good. My fix has been to factory reset in such cases as Android is not like Windows on fixes.
You can check out a few priors at https://www.google.com/search?q=Notification+sounds+disappeared&ie=utf-8&oe=utf-8#q=Notification+sounds+disappeared+site:androidforums.com to see if anything common is revealed but I didn't find a common cause or cure.
Hi All,
Could not resolve this problem on Android Central...
Samsung 6 Mega
2 weeks ago, text, email, voicemail, incoming calls notifications sounds disappeared.
Can hear all ringtones when I pick them out.
All volumes (speaker, phone, notifications, system) are maxed. Still no dice.
I still get notifications on the top, but with no sound.
Tried partition wipe.
Tried resetting defaults.
Restart, turn off, remove battery. No dice.
Tried in Safe Mode. No dice.
Another thing that has me scratching my head, is that before I started trying these solutions, I had 3 GB free space. Now I have 6 GB free space.
Please help.
I'm contemplating doing a factory reset, but I really don't want to.
-tutor

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