Hi, my AdvHepax was having some contact problems and in the end stopped making contact with the Calc at all (It was not detected in Cat 2, but sometimes with some gentle pressure in the right direction it would be). I decided to take a look inside and was able to resolder one of the loose joints so now it works perfectly again (I know, die Depperten ham immer des Glueck...)
As a side effect, there are a few pictures from the open module and I thought it might be interesting to some. I had to reduce them as I don't have a place to host the full res ones. VM also put something over the chips so that one can not read the numbers. I tried to make them visible but with only some success.
Anyway, enjoy.
Cheers
Peter
Top side of the PCB
Top Side of the PCB
Magnified 1st chip of the bottom side