Error 03 displayed on an EOS Mirrorless Camera.
Article ID: ART177658 | Date published: 10/14/2020 | Date last updated: 10/14/2020


An error code or message may appear on your product for different reasons. Please see the information information below regarding your specific error code that will explain the cause and provide you with the necessary steps for how to proceed.


Err 03

There are too many folders on the memory card.

  1. Replace the memory card with a formatted Compact Flash memory card
If the error message is still showing, then it is necessary for the camera to be inspected by a Canon Factory Service Center.

Please follow this link to begin the repair process: