Not sure what I may have done, but I have no volume control on my iPhone. When I push the volume buttons the "ringer" icon appears on screen however I have no control. When I open up the Music app I don't have a volume bar, and when I hit the home button twice I have the volume bar but do not have the indicator present. I can't find anything in the settings to resolve this. I have tried multiple times to do a hard reset with no change. Any help is appreciated.