Hi, I have received a Dreambox 500 HD, with sim a8p I want to change the image but I can't. I tried dreamup, it connects me well, but the answer is always (010 Invalid image or old version) On the web I have tried and it does not leave me either. I have seen that it has bootloader 77. Can someone tell me where to download a more current bootloader? What could be the problem ??