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How to test if a remote control is sending an Infrared (IR) signal

You'll need a phone with a camera.


Check if the IR Remote Control sends Infrared signals

  1. Turn on your camera on your cellphone.

  2. Point the end of the remote control with the IR emitter to the camera.

  3. Press and hold one of the buttons on the remote control.

  4. Look at the LCD screen.

    • If the remote control sends a signal, you should see a light on the cellphone screen when you press buttons on the remote control.


  • If you see the infrared light even when you don't press a button, one of the buttons on the remote may be stuck and other buttons may no longer work. If this is the case:

  1. Remove the batteries.

  2. Press and release each button a couple of times to see if you can free the stuck button.

  3. Reinsert the batteries and test the remote again.

  • You can also test each of the buttons on the remote. Press them one at a time and check if you can see the infrared light.

  • Use fresh batteries on the remote.

    • The battery power may be low if you don't see the infrared light or it's dim when you press a button.

  • Replace the remote control if you continue to see a light even if you don't press any button or if you can't see the infrared light when you press a specific button.

    • Make sure to replace your remote with the same model.

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