Thanks Bronxteck,
I don't understand exactly what you means. My Install of ML 10.8.4 was boot perfectly, after apply MLF on it, don't boot anymore. Does MLF change something that I need to fix after ? I try to reboot with my ML install key, run MyHack and fix all with full option, nothing change, try to re-install Chameleon, nothing again. I don't understand !! Do you think is a hardware problem ?
Thanks