Hi, mate
I had the same problem with a thomson, but it was I suppose because oscam e cccam can't handle emm received very well.
My card ceased to work and I could watch basic mixes only, nor movies nor sports and HD.
I watched my oscam and it was really dude, I'd received just 7 emm once and my card was updated to 24/8 too.
I sent it the former upgrade and its rights came back to 8/8, but it didn't work fine anymore.
I took back it to sky box and went head to get a new account updating.
Everything was just fine again and I could watch my subscription on dm8000 again.
I used to be a lucky guy :Laugh:
My card's rights now are still to 24/8, but I have just one more tier ending B968.
Now, I've blocked all oscam updates and nanos.
I hope this may help.
Max