I gave my SD card with Magic Lantern to the editing department and asked them to please not delete the ML files or format the SD card. They did one/both of the things I asked them not to do, as my SD card had no files on it, when I got it back.
I can switch on the camera with no SD card inserted, but the moment I put an SD card in (with ML on it or not) the camera can't start up.
I can switch on the camera with no SD card inserted, but the moment I put an SD card in (with ML on it or not) the camera can't start up.