I have a C760.
I have instaled the new bootloader sucesfully (no blinking leds), but I cannot bootup the emergency system. When I press ok and connect the power cable, the orange led blinks once and then nothing.
I have tried to wait more and less time before leave the ok button but the screen remains black.
I have tried with both a CF and a SD card with the same result (bootloader ok but no more).