1. WPCentral Question's Avatar
    I'm using a nokia lumia 720 & it was working perfectly. but since from yesterday i have noted that there's some sound (more like a buzzing sound) coming out from my rear phone only when i open certain apps (eg: whatsapp / nokia camera). but in idle mode or using IE, Music player. device works normally without any issue?

    Can some one please let me will this be a big problem in future? or is it fine.....
    10-06-2014 03:39 AM
  2. WanderingTraveler's Avatar
    Try a reboot, then a soft reset before attempting other fixes.

    This is abnormal behavior, in any case.

    (It may have something to do with your camera, too. Try opening other apps that use the camera in any way or form.)
    10-06-2014 04:52 AM

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