5DMKIII won't operate without ML on sd card?

[rickurb]

Is this to be expected?

[Walter Schulz]

Format card in your cardreader, use NTFS. Put card into cam, format again.

You made a common mistake: You used a bootable card, deleted the ML files only. If a cam with bootflag set detects a bootable card it will try to boot ML. And the last part is missing. Stuck.

Ciao, Walter

[rickurb]

Thanks Walter.
I'm using a mac and I don't have NTFS as a format option.
MS-DOS(FAT) I tried... no luck.
Camera still displays:
"Firmware update program
        Update file
     cannot be found.
  Please check the memory
    card and reload the
  battery and try again."

[a1ex]

Place Canon FIR on the card.

This is one of the reasons I chose not to publish a way to disable the bootflag for now. Despite all my checks in the source code, the bootflag routine still failed for few people, so it needs more investigation.

[rickurb]

Canon FIR update from card did the trick.
Thank you!

[Pelican]

Thanks Walter.
I'm using a mac and I don't have NTFS as a format option.
MS-DOS(FAT) I tried... no luck.
Camera still displays:
"Firmware update program
        Update file
     cannot be found.
  Please check the memory
    card and reload the
  battery and try again."

Interesting.
The same happened with an 5D MKII a month ago...
http://www.magiclantern.fm/forum/index.php?topic=9215.msg89645#msg89645