I have replaced my broken ADV2800 with an ADV3500. Is it possible to migrate the licence from the 2800 SD card to the 3500 card without affecting the licence already on the 3500 card. I want to do this so that I can reactivate the DMS maps on it that were previously on the 2800 card without using any more DMS credits. I clearly do not want to risk losing the existing licence on the 3500 card as that covers several new maps activated on it already. Many thanks, Geoff.