No Audio on LG Viper Phone
Ok I contacted AVG's new troubleshooting team.   The Tech said he only knows one thing I can try.  He said to take battery out an hold down the power button for 15 to 20 seconds.  It worked....    Now it will work unless you turn on the speaker. If you turn on the hands free speaker you will lose voice again and have to do it over again.    Other than that he said to contact your carrier for problem solving it. It worked for me so I am all set sound to and from callers work on my Viper LS840 LG lte.