1. Optimus82's Avatar
    I noticed that on the 521 there is a small hole on the battery cover right under the camera. If you open the back and look right under the camera there is a bigger opening with what looks to be a screen/filter used for mics.

    I've looked at pictures of the 520 and none of them have it. If this is a mic, is it used for calls for noise cancellation and/or video recording?
    07-25-2013 09:47 PM
  2. calfee20's Avatar
    It is a secondary mic for noise cancelation. I got this from this thread post #9: http://forums.windowscentral.com/nok...ver-520-a.html

    He did not provide any links.
    Optimus82 likes this.
    07-25-2013 10:19 PM
  3. Optimus82's Avatar
    ahh.. shouldve included thread content in my search. sorry for taking up useless thread space.

    thanks for the link
    07-25-2013 10:43 PM

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