Hi I have L5512RVF and L5508D1AP units. How does one open these units. I want to access the inside. My initial guess was that one should somehow pop the blue parts off from the housing, as it seems that they might be holding the two halves of the housing together on the face side. Then you go to the bottom of the units where one can split the cover in two. Well, I got stuck at popping the blue parts on the face of the units. It feels like they should pop off but I am just busy damaging the plastic. Cant get them off. Or should one just pop out the 4 clips at the bottom of the unit. Has anyone opened these units? Some tips would be much appreciated. C