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| p.1 #5 · p.1 #5 · Why can't I upgrade firmware on 5D Mark III? |
You can also do it via the Canon EOS Utility software without having to put the firmware update on a card
- connect camera to computer using USB cable and open EOS Utility
- Open the 'remote shooting' control panel
- choose the 'setup' tab of the menu
- click on the firmware version, choose 'update firmware ' and point it to wherever you saved the firmware update file on your computer
Just FYI, basically, what that does is to copy the file into the card for you. You can't update it without a card inside the camera.