I checked the firmware version and downloaded the correct one from the website. I drag and drop the downloaded files into the root directory of a formatted card (4gb) and (8gb), eject, and put into the camera. I power it up using the review button, press menu and I don't see the option for firmware update. I got the option one time before but I don't know how it showed up and even when I updated it, the files were corrupted. any help would be great, sorry if this question is formatted weird, it's getting late and I'be been trying to install this for hours.

I should also add that I'm using a MacBook Pro running OS X 10.10.3

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    \$\begingroup\$ Are you sure you scrolled through the whole menu? \$\endgroup\$
    – inkista
    Commented Apr 17, 2015 at 6:11
  • \$\begingroup\$ @inkista I got it last night, it was a problem with my Mac so I switched to a Windows computer and it worked just fine. \$\endgroup\$
    – Joe Scotto
    Commented Apr 17, 2015 at 19:02

1 Answer 1


There are some good tips about installing CHDK on a Mac listed here :


Also, at the top of that page is a link to a utility called STICK that will do the complete install for you on a Mac, Windows, or Linux computer.


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