Everything volume related has completely disappeared from the screen, there is no way to change the volume (including assistive touch, control center, and the buttons). I know it is not a problem with the speakers, because if someone calls me the phone will ring, but volume does not work anywhere else. I tried restarting, getting a software update, cleaning the ports with a toothbrush… None of it seems to work. Help?
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How to get the volume to work on my iPhone 4s?