Hello I ask for a friend…! He has 3 keys for his combo D. 2 foldable with FB and one without frills. A foldable and the normal have never been used. Now turned out, with the two with the FB the FB does not work and with the two new, so one with FB and the normal also does not work. Yellow service lamp (car with padlock in) lights up when the ignition is switched on. Now he was with the car with a friend, which has a free workshop, but which could not program the keys, neither FB nor WFS. Supposedly it was also with an Opel dealer and also could not program them. Reason….??? I built the non-functioning folding key with FB apart. An electronic module with soldered chip and also a new battery is available. Does anyone have one or more tips, which I can still test or test? Thanks in advance Roland