Considering that the phone isn't rooted and the most
popular volume boost app for Android (Volume +) is only guaranteed to work on Android Gingerbread devices, I decided to look for alternative means for non rooted phones and thus stumbled on something called Android Engineer Mode.
This
volume also looks at puppets in Modern art and
popular culture — from Sophie Tauber Arp's Dada marionettes to the Internet phenomenon of the «sockpuppet» — a well - known person's fake online persona, created in order to
boost public opinion.