Hi,
I
posted about the exact same issue recently a short while back and it seemed like nobody else had that problem or at least nobody was talking about it.
Anyway, only this weekend I've finally managed to crack it.
The fix I made was take the ROM posted by CCadi and swap out the two image files from the original XBMC Linux ROM from Sumvision and also add in a couple of lines to the updater script also from their image.
The big obvious plus points to me was that it now works but also, and this might be a big help to a lot of other people, it no longer boots into recovery when you turn it on.
I've ran this tweaked ROM on both my Sumvision box and the old white MyGica box and it works great. it has the A9 splash screen but I don't mind that and the only different I've noticed so far is that the CPU usage on the Sumvision is super low, usually bouncing around the 10-20% mark whereas the the MyGica box has the CPU sitting around 60-70%.
Tried that with the original CCadi ROM and it's just the same so I don't understand what's happening there but will check the logs to see if I can narrow it down unless anyone else has a solution to that one?
So if you would like, with a bit of luck, here's my tweaked ROM
XBMC Frodo 12.2, via Pivos courtesy of CCadi and with some Sumvision elements