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Canon R5 II Firmware 1.3.1 Available

  
 
Axel H
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p.1 #1 · Canon R5 II Firmware 1.3.1 Available


https://www.usa.canon.com/support/p/eos-r5-mark-ii

Fixes an issue in which the camera may stop functioning properly when Touch & drag AF is used with the [AF area] set to "Whole Area AF".



Jun 06, 2026 at 07:44 AM
EB-1
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p.1 #2 · Canon R5 II Firmware 1.3.1 Available


It's interesting that FW 1.2.0 and 1.3.1 are there now, but not 1.3.0.
https://www.canon.co.nz/cameras/eos-r5-mark-ii/support?option=drivers
I just noticed that my personal R5 II is still on 1.2.0. I wonder how long to wait for the update.

EBH



Jun 07, 2026 at 12:55 AM
stanj
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p.1 #3 · Canon R5 II Firmware 1.3.1 Available


EB-1 wrote:
It's interesting that FW 1.2.0 and 1.3.1 are there now, but not 1.3.0.


Probably because 1.3.0 is known to have bugs, and has been directly superseded?



Jun 07, 2026 at 01:39 AM
EB-1
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p.1 #4 · Canon R5 II Firmware 1.3.1 Available


They all have bugs.
Have you used 1.3.1?

EBH



Jun 07, 2026 at 09:29 AM
Axel H
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p.1 #5 · Canon R5 II Firmware 1.3.1 Available


stanj wrote:
Probably because 1.3.0 is known to have bugs, and has been directly superseded?


I installed the new firmware and photographed swallows in flight this morning, and didn't notice any issues.




Jun 07, 2026 at 09:51 AM
rscheffler
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p.1 #6 · Canon R5 II Firmware 1.3.1 Available


EB-1 wrote:
It's interesting that FW 1.2.0 and 1.3.1 are there now, but not 1.3.0.
https://www.canon.co.nz/cameras/eos-r5-mark-ii/support?option=drivers
I just noticed that my personal R5 II is still on 1.2.0. I wonder how long to wait for the update.

EBH


I'm in no rush. My R5II is working well for what I need it to do and will wait for more user feedback.



Jun 07, 2026 at 11:32 AM
Carlo_M
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p.1 #7 · Canon R5 II Firmware 1.3.1 Available


I installed 1.3.1 on release date and have not had an issue with it. But to be fair I also wasn't affected by the bug it fixed from 1.3.0 because I don't use touch AF in that way. I did install 1.3.0 (and .1) pretty soon after release because I wanted to be able to map pre-capture on/off to a button, as I shoot wildlife and birds in flight often.


Jun 08, 2026 at 10:23 AM
Flowernut
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p.1 #8 · Canon R5 II Firmware 1.3.1 Available


How long should we wait for the bugs to show up? I don't want to upgrade too soon. Let the Beta testers do their work.


Jun 10, 2026 at 08:36 AM
Tom_W
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p.1 #9 · Canon R5 II Firmware 1.3.1 Available


I think the bugs may have already shown up on 1.3.0, because this was a quick update after that version. Something showed up and they dealt with it quickly.



Jun 10, 2026 at 09:03 AM
bogeypro
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p.1 #10 · Canon R5 II Firmware 1.3.1 Available



That's referred to as an undocumented feature
EB-1 wrote:
They all have bugs.
Have you used 1.3.1?

EBH




Jun 10, 2026 at 09:21 AM
 


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Carlo_M
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p.1 #11 · Canon R5 II Firmware 1.3.1 Available


Flowernut wrote:
How long should we wait for the bugs to show up? I don't want to upgrade too soon. Let the Beta testers do their work.


The general advice for those who are risk averse is: don't upgrade unless the new firmware either 1) fixes bugs that were affecting you, and/or 2) gives you new features you want.

With firmware now going well over 250MB (Sony's A7R 5 is 750MB!) for many of the high end models for the Big Brands, there is a high chance that new bugs will be introduced in every firmware. In most cases they're usually small, annoying things that only affect a small minority of people and don't brick the camera, but sometimes they can be severe.

No firmware is perfect. Ever read the patch notes? Most of the time they list specific bugs they fixed, or have a generic "security and stability improvement"--which is code for we fixed some bugs 99.9% of you didn't notice.



Jun 10, 2026 at 11:49 AM
deke4774
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p.1 #12 · Canon R5 II Firmware 1.3.1 Available


My R5 mkii was on 1.2.0 and was working well with it.
I had to send the camera to Canon and it came back with 1.3.0
Last weekend it locked up on me 6 times within an hour and I lost all the associated photo bursts each time.
Went back to the R1 for the rest of the time.
Hopefully 1.3.1 fixes the lock ups.

Derek



Jun 12, 2026 at 09:02 AM
EB-1
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p.1 #13 · Canon R5 II Firmware 1.3.1 Available


The huge problem is that Canon does not support reverting to older FW.

EBH



Jun 12, 2026 at 09:38 AM
Steve Spencer
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p.1 #14 · Canon R5 II Firmware 1.3.1 Available


EB-1 wrote:
The huge problem is that Canon does not support reverting to older FW.

EBH


Is that true? Can't you do a factory reset and if you save the old FW, update to whatever version you want?



Jun 12, 2026 at 10:23 AM
EB-1
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p.1 #15 · Canon R5 II Firmware 1.3.1 Available


IIRC you can by fooling the system, e.g., pulling the card or something funky at the right moment. You can find a thread or someone can explain. I never did that, but it is a nasty practice.

EBH



Jun 12, 2026 at 10:35 AM
bobbyboy uk
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p.1 #16 · Canon R5 II Firmware 1.3.1 Available


i've gone back to older firmwares many times on the R3 , works every time swapping cards, not tried it on the R5II yet.




Jun 12, 2026 at 12:57 PM
tomba8tomba
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p.1 #17 · Canon R5 II Firmware 1.3.1 Available


I would update to 1.3.1 first before downgrading to 1.2.

Thats fixed a friends problem with 1.3 freezing the R5II several times a day.

I had no problem with 1.3 and also non with 1.3.1 now.



Jun 13, 2026 at 02:50 AM
EB-1
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p.1 #18 · Canon R5 II Firmware 1.3.1 Available


Apparently my personal R5 II is on 1.1.1. I suppose it is time to update to 1.2.0 or maybe wait a little longer for 1.3.1.

EBH



Jun 13, 2026 at 08:37 PM
rscheffler
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p.1 #19 · Canon R5 II Firmware 1.3.1 Available


The only freezes I get, on 1.2, and probably 1.1.1 before it, occasionally seem to occur when I've shot a sequence and immediately hit the review button to see an image. I'll get a black screen but the camera continues writing to the card until the buffer is clear. I think once or twice I've waited it out and it eventually recovered but usually I pull the battery to force reset it. Turning it off would probably be better as it should remember the current settings. When I pull the battery half the time it will turn on with camera settings (shutter, aperture, ISO, etc.) from the last time it was properly shut down.

Somewhere I read it was card related, but I can't pin it down as I frequently rotate through three brands of CFe cards and a couple brands/models of SD. The camera is always set to record to both cards.



Jun 13, 2026 at 08:56 PM
John Straus
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p.1 #20 · Canon R5 II Firmware 1.3.1 Available


I wait a month for others to try it out before upgrading... Just like any computer OS update...


Jun 13, 2026 at 10:34 PM
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