I am just not understanding you comment about 'certificates'.
I have never needed them before so what has changed?
1. The card has been tested by the dealer and found working OK with the same CAM.
2. I have not experienced any problems until the latest VIX images.
3. Tried an earlier VIX image (4.7) and working OK.
4. Tried two other Images :- PLI and ATV, both OK
5. I do not understand that two out of three channels on exactly the same frequency are OK.