The latest version of the firmware for the Canon EOS R5 II is now version 1.1.1

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What’s New in Firmware Version 1.1.1
This firmware (Version 1.1.1) includes fixes for the following issues identified in Version 1.1.0:
1. Fixes an issue where video could not be recorded correctly when using a memory card larger than 2TB with the [Pre-recording] setting enabled.
This firmware also incorporates the following changes introduced in Firmware Version 1.1.0:
1. Improves security features. A password must be set initially.
•Adds the ability to review the history of any changes made to the password, network information, or other settings.
*For more information, please refer to the ‘Setting a Password’ section in the Advanced User Guide on cam.start.canon.
2. Enables firmware updates to be performed when the camera is connected to the internet and new firmware is made available on Canon servers.
3. Adds the ability to automatically detect Flicker at 100 or 120 Hz during Live View display.
4. Adds the ability to register focus position as a presets on the CR-A100 Camera Remote Application. This ability makes it easier to focus on subjects at the intended distance when the application is used with Robotic Camera System CR-S700R.
5. Adds the ability to select [Case Special] to expand Servo AF characteristics which is effective for subjects located behind a net in sporting events, such as badminton or volleyball.
6. Adds support for the Software Development Assistance Kit (EDSDK/CCAPI).
7. Adds a function that simultaneously protects images when they are rated.
8. Improves image stabilization control for lenses compatible with Peripheral Coordinated Control.
9. Adds support for the Software Development Assistance Kit (EDSDK/CCAPI).
10. Adds to lower the image capture frame rate to help prevent overheating when connected to CR-A100 in extended remote shooting.
11. When transferring images with voice memos via FTP, the transfer order priority has now changed with voice memo (Wav) file being sent first followed by image file.
If a voice memo is added to an image queued for transfer, the image and voice memo are now sent last.
12. Adds the ability to set the number of shots captured in pre-continuous shooting mode.
13. Adds the ability to set [Airplane mode] to shooting button customization.
14. Adds the ability to enable [Exposure Simulation] when a flash unit is attached.
15. Improved AF tracking during video capture for subjects that are difficult to focus on.
16. Fixes an issue in which Err70 may occur when enlarging an image after shooting with [Blackout-Free Display] set to “On” and [Servo 1st image priority/One-Shot AF release priority] set to “Release priority”.
17. Fixes an issue in which Err70 may occur during Bluetooth communication due to interference from other Bluetooth devices.
18. Fixes an issue in which Err70 may occur when repeatedly shooting in the “High-speed continuous shooting +” mode.
19. Fixes an issue in which Err70 may occur immediately after startup when shooting with the electronic shutter.
20. Fixes an issue in which Err70 may occur during video recording in “FHD239.8P/200.0P”.
21. Fixes an issue in which Error 70 may occur while filming in video mode with frame rate set to “50.00P” and [Movie Digital IS] set to “On” or “Enhanced”.
22. Fixes an issue in which Err70 may occur during shooting when both [Pre-recording] and [Auto send] to image.canon are set to “Enable”.
23. Fixes an issue in which the camera may stop functioning properly when [Image Review] is set to “Off” and the monitor entered low brightness mode after pre-continuous shooting.
24. Fixes an issue in which video recording may not be possible when using Remote Live View shooting in EOS Utility while outputting via HDMI.
25. Fixes an issue in which large RAW image files may not be transferred via Camera Connect.
26. Fixes an issue in which a horizontal line may appear momentarily in the viewfinder.
27. Fixes an issue in which the camera may not connect to Wi-Fi 7-compatible routers.
Contact a support representative regarding use of the Software Development Kit for digital cameras.
If the camera’s firmware is Version 1.0.1, please update the firmware with only one memory card inserted into the camera.
If the camera’s firmware is already Version 1.1.1, it is not necessary to update the firmware.
Firmware Download
You can download the firmware from Canon’s Support Sites:
Make sure that you download the correct firmware for your computer (Windows or Mac).
How to Install the Firmware
Updating the firmware for the Canon R5 II is a very straight forward and painless process.
When you download the firmware it will include a PDF guide on how to install the firmware, you can also download this guide here.
There are two methods described in this guide, we would recommend using the card reader in your camera.
If you are downloading to a Mac then when you click on the.dmg file it will mount a drive where you will find the files. Just check in Finder and you should see the mounted drive.
Previous Firmware Versions
Version 1.0.3
- Optimizes the timing of the camera’s display of its internal camera temperature warning indicator.
- Fixes an issue that may interfere with the camera’s ability to focus properly when using AF (autofocus) in certain zoom ranges.
If the camera’s firmware is Version 1.0.1, please update the firmware with only one memory card inserted into the camera.
Version 1.0.2
Firmware Version 1.0.2 incorporates the following enhancements and fixes:
1. Incorporates support for frame rates of 23.98fps/24.00fps when using the LP-E6NH and LP-E6N battery.
2. The Wi-Fi connection status is now identifiable by the color of the [FTP Transfer Icon].
3. Adds [Protect Images] and [Rating] during FTP Transfer.
4. Adds the ability to change [Custom Shooting Mode] while writing images to the media (BUSY).
5. Fixes an issue in which the camera may become inoperable if a lens that does not communicate with the camera is attached when repeatedly shooting while using HDMI output.
6. Fixes an issue in which the camera may become inoperable if an image is cropped while other images are being transferred to an FTP server.
7. Fixes an issue in which Err70 may occur when using an application software such as Camera Connect, and the load on the smartphone increases.
8. Fixes an issue in which image stabilization may become unstable in movie mode when panning diagonally while using some stabilization rigs (such as monopod or handheld rigs).
9. Fixes an issue in which all images may not be copied when copying multiple selected images in the camera.
10. Fixes an issue in which another manufacturer devices (such as strobe or remote camera trigger) may work during pre-continuous shooting.
11. Fixes an issue that may, immediately after shooting, cause the screen to take a long time to turn off when using a button that has been assigned the “Screen off” function.
12. Fixes an issue in which Look File settings may apply to multiple custom picture files.
13. Fixes an issue in which the AF frame movement may not be smooth when several shooting information items are displayed and the multi-controller is operated.
14. Implements a fix to include custom pictures when saving camera settings.
15. Improves operation stability during network communication.
If the camera’s firmware is already Version 1.0.2, it is not necessary to update the firmware.
Version 1.0.1
Improvements from previous firmware versions are always included in the latest firmware version. So even if you have missed a couple of firmware versions, you only ever need to install the latest version unless specifically mentioned otherwise.
Firmware Version 1.0.1 incorporates the following fixes:
1. Fixes an issue in which movies captured in RAW/SRAW format may not play back properly on applications due to the attached lens and camera not communicating.
2. Improves the stability of the touch operation control when the [Touch control] is set to [Sensitive].
3. Fixes an issue in which the camera’s LCD display may become abnormal after the camera resumes operations from the [Viewfinder off] state.
4. Fixes an issue in which the camera may stop working properly when the shutter button is operated while the BUSY message is being displayed on the screen.
5. Fixes an issue in which Err70 may be displayed when the display mode is switched between the LCD screen and viewfinder while the BUSY message is being displayed on the screen.
6. Fixes an issue, in which the camera’s LCD display becomes abnormal after using EOS Utility to capture and import movies.
7. Fixes an issue, in which movies captured using EOS Utility may not be played back on the camera.
8. Optimizes the auto white balance for specific environments when the Custom Picture function is set to [On].
If the camera’s firmware is already Version 1.0.1, it is not necessary to update the firmware.
Version 1.0.0
The R5 Mark II was released with firmware version 1.0.0
Canon R5 II Guides & Resources
Canon R5 / R5 II Forum & Facebook Group
If you are looking for further help and advice on the Canon R5 / R5 Mark II or would simply like to share your photos and videos, then please head over to our friendly Forum. If you prefer Facebook then we also run the Canon R5 & R5II Shooters Group.
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I’ve been using R5 MK II Firmware Version 1.0.2 since it released on Dec 5th but not seeing it on this helpful site. I notice I didn’t see that firmware when selecting Windows 11 OS on Canon’s R5M2 download page, but shows up when selecting MacOS 14 or whatever. The new firmware runs mostly fine but I was able to cause the camera to hard freeze while messing with Favorites/Settings.