1. Android Central Question's Avatar
    I here a knocking sound coming from my phone, what can it be.
    01-22-2019 04:01 PM
  2. SpookDroid's Avatar
    I assume you have a Samsung phone? There's a notification sound called 'Knock' that sounds, well, like someone knocking. Unfortunately unless you know what you assigned that notification sound to, it's really hard to help with what could be doing it.

    Do you get any notification in the bar? Any messages/pop ups? I can't remember if it was Facebook's Messenger or Hangouts that used that as a default notification sound, so you could check those out.
    belodion likes this.
    01-22-2019 04:09 PM

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