My volume bar is gone on my iPhone
For the last week my volume bar has disappeared when I press the button. The speaker shows up but nothing happens. It won't play music or YouTube and the volume bar is gone there to. It doesn't work on games either. Today I was playing a game and I heard sound and it worked for a split second and then it stopped. It did that twice. Why does it do this and how can I fix it? I have an iPhone 4