KaMc

HI there. So, I`ve had my s211 for about a year and a half now, and recently I started having problems with my cargo cover. I stopped and started working by itself for a couple of months, but a couple of weeks ago it stopped opening completely. Now heres the thing, it does not open when I open the trunk, but if I connect a scanner tool to the car I can make it open with no issue. So my question would buy, what could be the problem. I saw a post here about there being a magnet on the cover that acts as a sensor, but I still don't quite get it. Any help is appreciated