Unfortunately I also gave up after 3 hours of trying.
This is not the first time I install a cccam and I have never had any problems but I just can't get it to work with this image. I installed the DE-extra plugin, installed the softcam and the softcam manager. Copied the CCcam.cfg file to / etc and then, as suggested created (after a clean new install) the path /var/etc/CCcam.cfg. No cam works, not even the Oscam.
Obviously I have repeatedly restarted the decoder during all phases.
Oddly, with the image I was using ie DreamOS + GP4., No kind of problem.
Really a shame to have waited so long and then have to give up.
P.S. Dreambox DM900UHD