My car has recently been in for a service. I, routinely, strip everything out of the car for this, including the nav card. What I found was that my personal poi’s, including speed cameras, were missing. Nothing I tried would, in the infotainment system, would bring them back. I found a setting for retrieving my POI’s, but that told me that there were no updates available. I eventually found that I had to modify my POI’s online, just by deleting one folder and adding it again, to fool the system into thinking there was an actual update, which it then downloaded. Reselected POI’s to be displayed and all was fine.