I just want to let IPHONE 4 users how I fixed a problem that even geniuses couldnt fix.
My iphone sudenly lost sound in the speaker, the ringer didnt work, notifications didnt work and I could not hear sound when I played a video on youtube, also no sound when I played music unless I plugged in earphones or a set of small speakers.
I tried all settings and nothing, I tried solutions on the trouble shooting advice from this section and still nothing and I saw posts of users with similar problems, tried hard reset, the 5 step suggestion and nothing worked.
Then after a complete reset of the iphone and sync of all apps etc nothing worked, then tonight my 12 year old girl asks to play on my iphone and
I say no audio ig you still want to play and then an epiphony, I asked hey remember when I tell you to mute the sound and she says yes sure and I asked if she just turned it off with the side slide button and she said most of the time but also that some of her games gave her a mute option so I asked her to go to her favorite game and see if she had left the sound off, well in the sync I had not chosen that game so she couldnt find it, we downloaded the game again and she turned the mut off and incredible SOUND started working, speaker was working, we called my iphone and it rang and key sounds were working and notifications as well, so it was the mute in the game that messed it all up.
iPhone 4, iOS 5.1.1