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EOS R6 Mark II Firmware Version 1.7.0

13th May 2026

Firmware Ver1.7.0 incorporates the following fixes and enhancements:

1. Adds [Wi‑Fi freq. band] to [Communication Settings], allowing the user to select the 5 GHz or 2.4 G Hz band when transferring from Bluetooth to Wi-Fi.

2. Adds support for the Software Development Assistance Kit (CCAPI).

3. Fixes an issue that may cause image transfers to an FTP server to fail and for Err41 to be displayed.

4. Fixes an issue that may cause Err49 to be displayed repeatedly during communication with an SFTP server.

5. Fixes an issue that may cause the camera to not be recognized when connected to a smartphone via USB.

6. Fixes an issue that may cause a horizontal line to appear momentarily in the viewfinder.

7. Improves other system stability.

If the camera's firmware is already Ver1.7.0, it is not necessary to update the firmware.

The User Manual on our website has been updated accordingly. Please download the User Manual as well as the latest firmware. You can download it from the official website.

Q&A Section:
Preparations for the firmware update:
In the folder you downloaded are the firmware (R6217000.FIR / file size: 76869632 bytes) and instructions on the firmware update procedures (a PDF file in five languages: Japanese, English, French, Spanish, and Simplified Chinese). Before starting the firmware update operations, please be sure to carefully review the instructions to confirm your understanding of the firmware update procedures.

Firmware download link:
https://www.canon.com.au/cameras/eos-r6-mark-ii/support?option=drivers