I should start with showing the SW, which I removed, after it had been removed, cause here you can see, what you can't see, properly, when the SW is mounted: Look at the housing (top of picture): 4 round holes (that is where you need to painfully harvest 4 torx screws from) and 3 square holes: There are no screws in those square holes. Instead you need to poke into those square holes with a fairly big flathead screwdriver (mid sized). I poked in and turned it again and again at 3, 6 and 9 o'cloc