well i have tried to follow the instructions to install the preAlpha.
when i try to update the firmware (1.0.1) i am getting "update file cannot be found" error message.
The 650-safe-dumper.fir (size 216,124b) is on my SanDisk Extreme SDXC I 64GB card that was previously low-level formatted.
what am i doing wrong? i have tried it several times with no success. even downloaded the file again, but still the same message.
cheers for help
This has worked for several people here who have had trouble getting ML installed:
This is what worked for me:
Create a magic lantern folder on your hard drive
Download
http://nanomad.magiclantern.fm/650D/magiclantern-v2.3.NEXT.2013Apr30.650D.PreAlpha2.zip (unzip all files to your ml folder on your hard drive)
On your camera select menu, first wrench icon, format card
download
https://bitbucket.org/hudson/magic-lantern/src/99bd629f7c5712346369840e64c04fd2d4576520/platform/650D.101/devkit/650D-safe-dumper.fir?at=unified, then copy the .fir file to your card and put it back in the camera.
With the cam in manual mode, go to last wrench setting before star, fimware ver, set, select ok, then my menu settings will read enablebootdisk

Put your card in the computer and download
http://pel.hu/down/EOScard.exe and run this program
Check EOS Devlop and Bootdisk boxes, save
Check the card, if EOS card wrote any files, delete them
Copy from your ML folder these files: ML folder, autoexec.bin and 650D-safe-dumper.fir to your card
Put card in camera and press the trashcan button after it boots, then the left arrow button to the left of the set button