Copy the .fir file directly onto the of the card (don't put it in any folders like DCIM). Eject the card safely. 4. Run the Update on Your Camera Insert the CF card into your 5D Mark II.
If you use a modern OS (like Windows 10/11 or recent macOS), the firmware might not appear automatically. You may need to select an older OS (e.g., Windows 7 ) from the dropdown menu to see the download link for Firmware Version 2.1.2 .
Copy the .fir file directly onto the of the card (don't put it in any folders like DCIM). Eject the card safely. 4. Run the Update on Your Camera Insert the CF card into your 5D Mark II.
If you use a modern OS (like Windows 10/11 or recent macOS), the firmware might not appear automatically. You may need to select an older OS (e.g., Windows 7 ) from the dropdown menu to see the download link for Firmware Version 2.1.2 .
