Dark Video Recording

[Guest oldmanyoung]

I am wondering if this is normal or if it's me.

Whenever i start recording a video from my i600, the camera suddenly looses all brightness and the picture turns dark. In the day, since there is plenty of light, it records with enough light though the picture is quite dark. But in the night it turns completely dark and only caputres sources that emites light. I find it strange because looking in the viewfinder before pressing record, there is proper light and brightness. But once i press record, the picture goes dark.

Is there a fix for this?