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Error 01 displayed on an EOS Mirrorless Camera.

Article ID: ART177656 | Date published: 10/14/2020 | Date last updated: 08/16/2022
 

Description

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.

Solution

Err 01

Description
The communication between the camera and lens is faulty.

Resolution
  1. Very gently clean the electrical contacts (highlighted in red) on the camera and the lens using a clean and dry cloth


CAUTION:

When cleaning the contacts take the following precautions:
  • Do not wipe the contacts with a wet cloth.
  • Do not touch the contacts directly with your hands. Touching them with your hands could cause corrosion, which would cause the camera to become inoperable.
  • When cleaning the contacts on the lens side, be careful not to damage the lens surface.
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: https://www.usa.canon.com/support/service-and-repair
 

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