Interesting problem the sound on my 4s isnt working properly. I can go into settings and play with the ringer volume and the phone makes noise but when im on the home screen when i press either of the volume buttons it shows no bars and wont move i have the sound up in the settings anyway i set a timer and it made noise but i cant get any sound from inside apps or clicks from the keyboards its just really strange and im not sure how to fix it. sorry if this is something easy but im still trying to get used to this thing since leaving my pre.