Messages

I have downloaded 1.1.6 and updated firmware on two of my 6D's - and then put ML 1.1.6 onto the SD. However, I cannot install it once it's on the SD card - the Menu is the same that came with the Canon. I reformatted a 32 gig and 16 gig SD and neither will Install the ML - although the 1.1.6 is on the card - and the firmware is updated. Please help - I can't install?  I am a bit confused about all the talk about "downgrading to 1.1.3 - when it appears 1.1.6 is the latest version."  Thanks much - going to Paris tomorrow - so I'm in a bit of a hurry.