Periodically lose sound on ZenFone 6

[GViP]

Dear Sirs,

Couple days ago I've noticed that there is no sound  on incoming calls. I do not hear calling persons. No sound from multimedia as well. 

Cache cleaning and phone restart helps but for some period of time.

Is there  any possibility to fix problem on a permanent base?

please advise.

[GViP]

It is not reply but add-on... I've tried Hard Reset but the problem was not fixed...

[keren_ASUS]

Hello @GViP 

Can you try following the steps on this FAQ: 

https://www.asus.com/support/FAQ/1011565/

https://www.asus.com/support/FAQ/1011569/

If none of these steps help, I recommend reaching out to your nearest service center. Thank you! 

[GViP]

Many thanks for trying to help me but none of the given solutions works for me....

The latest system update was available more than a year.

I did Hardware Reset that brought device to factory setting (no 3td party applications) but the problem was not fixed. Sound from the speakers suddenly disappear from any source (media, system, notifications)