Night vision doesn't work in this camera.  When I turn off the lights I only see a black dark screen recording. 

I already tried the following suggested "fixes" : 

1. Changing the camera from another environment. Doesn't work. Its the same behavior no matter where I place the camera. 

2. Keeping the setting in "Auto". Doesn't work. 

3. Changing manually the mode to "night mode". Same behavior. 

4. Resetting the camera to initial state using the reset button. 

5. Updating the firmware to the latest version. 

Any help will be appreciated.