04-12-2013 03:44 PM
Welcome to the BlackBerry Support Community.
Have you already attempted reinserting your battery? If so, perform a reload or upgrade your BlackBerry Device Software to address the issue you are experiencing with your Mute button. For more information on this procedure see the following article:
How to update or reinstall BlackBerry Device Software using BlackBerry Desktop Software:
In the case that this process fails to resolve the issue, please contact your point of sale for options.
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