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EOS R3: Firmware Version 2.1.0

  
 
Mykal
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p.1 #1 · EOS R3: Firmware Version 2.1.0


Firmware version 2.1.0 incorporates the following fixes and enhancements:

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.

Adds the ability to switch the group settings of a receiver camera from the sender camera when using the EOS Multi-Remote app.

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

Improves other system stability.

https://www.usa.canon.com/support/p/eos-r3



May 14, 2026 at 08:02 AM
Pixelwasser
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p.1 #2 · EOS R3: Firmware Version 2.1.0


Has anyone installed the new firmware yet?


May 17, 2026 at 10:26 AM
Caleb Williams
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p.1 #3 · EOS R3: Firmware Version 2.1.0


Pixelwasser wrote:
Has anyone installed the new firmware yet?


I have not but I have seen some chatter on one of the R3 Facebook groups about some issues with the Camera Connect app after the latest update. That thread mentioned iOS specifically, but it's possible it was happening on Android too.

That said, I don't know whether the users that reported these issues only have R3s or experienced these issues with other R series bodies that recently received firmware updates.



May 17, 2026 at 09:38 PM
Badger
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p.1 #4 · EOS R3: Firmware Version 2.1.0


Installed the R3 firmware and no issue, albeit limited use. On the app connection point, the connection to my R3 was not working before the upgrade and neither was it working after the upgrade. I used the traditional method of copying the firmware file to a card and installed from there.

I also upgraded the firmware on my R1. Again, successful but limited use. App connection worked fine before upgrade and fine after.

Any input on the R3 problem most welcome.



May 26, 2026 at 02:50 AM







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