EOS 5D Mark III Downgrade 1.3.3-1.2.3, to use Magic Lantern

The Problem . . . . Magic Lantern works NOT with the actual Firmware 1.3.3 - so I had to downgrade to Ver. 1.2.3 older firmware here: http://chdk.wikia.com/wiki/Official_Canon_firmware_updates Download the file you like to use (normal Ver. 1.2.3), start Canon Utility and follow the video. I did it today - works well an Magic Lantern works now on my EOS 5D III