Why does the loud speaker hiss when in messaging?

Discussion in 'iPhone Tips, Help and Troubleshooting' started by cined1, Mar 24, 2012.

  1. cined1, Mar 24, 2012
    Last edited: Mar 24, 2012

    cined1 macrumors newbie

    Mar 19, 2012
    When I go into messaging on my 4S and put my ear close to the bottom speaker, there is a hissing noise - The same noise you get when you put your ear into a shell.

    My sisters iPhone 4 also does this.

    Why does it happen?
  2. Vansslipon macrumors newbie

    Mar 24, 2012
    Wirelessly posted

    Hehe no idea ... Nice found. My iPhone4 also has it )

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