I have been successfully using ML on a 600D, and today I just installed it on my new 700D.
However, I am able to run it only up to the first format operation. That is, when I format the sd card (clearly by choosing to keep ML), the operation ends saying "writing bootflags", then the camera shuts down.
When I turn it on again, I cannot start ML anymore. To be able to run it again, I need to make the SD card bootable again (I use MacBoot).
Any help on this?