Hi, new to android and this forum so appreciate any help offered. On my Galaxy S3 with ICS the volume button allowed me to reduce volume to vibrate and pressing it again put the phone in mute. I now notice that it only reduces to vibrate and pressing it again does not allow mute. Could this be a feature of Jellybean which was installed recently? I can still mute from settings...but the side volume button was really handy. Thanks in advance for any help.