how to Disable/ Enable Google Duo live Video Preview on Android

Google launched a 1-to-1 Video calling app for iOS and Android users called ‘’Google Duo’’. The app is Competitive of well in-vogue Video chat programs Skype and Apple’s FaceTime.

Google brings an amazing feature in its new product called ‘’knock knock’’. The knock Knock is a live video or Call Preview, which allows the receiver to see the live Video of the Caller before the accept video call. If you want to stop Knock knock (live video preview) then you can switch off it easily. I will share here how to Disable/ Enable Google Duo live Video Preview on Android

How to Disable/ Enable Google Duo live Video Preview Android


  1. Open Google Duo app.
  2. Touch the three-dot menu on top-left corner of the app, and select Settings from there.
  3. Select Knock Knock from the of options under Duo settings screen.
  4. On the Knock Knock screen, Turn Off the Knock Knock Toggle at the bottom of the screen (scroll down a bit, if required).
  5. Go back to your normal business. Knock Knock is now disabled for you.

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