Viber on Ativ S

[rotkod]

After the last update 2.3.0 (now 2.3.1), I can not talk, I think I hear the other, no one hears me ...
Same on wifi or 3G (H+).

 

[stmav]

Have you tried uninstalling and reinstalling? Did a search on problems with version 2.3.1 and it's coming up with nothing so far.