I lost sound on my iPhone's speaker.
I can't use the speaker at all (for music or speaker phone), it won't ring, and I don't get text alerts. It vibrates, just no sound. And yes, I know about the toggle switch. The toggle switch is on, the sound settings are fine, I cleaned out the earphone jack, I turned it off/on several times, and I just updated it. Nothing works. What else can I try?
iPhone 4S, iOS 6.1.3