I was on JB 3.41 so I edited my PARAM.SFO on Call of Duty Black Ops so that it would play. Then when I installed Kmeaw 3.55 CFW, Black ops started to give me Error 80010009 and wouldnt boot.
to get it to work, I replaced the PARAM.SFO with the original version and I also replaced the EBOOT file(not sure this was necessary but I couldnt remember whether this game needed an edited EBOOT, so wasnt sure if I`d replaced the original, anyway I replaced with the orginal to make sure). This still gave me the error, so my last effort was to download Game update v.1.05 Pkg and install that.
This has made the game work again. Just thought I`d share incase it works for other people too.
PS3 Slim 120GB
kmeaw CFW 3.55
JB Dongle - AVR Minimus 32 (not needed anymore)