topic Re: Unable to update my new EOS R5 firmware in EOS DSLR & Mirrorless Cameras

Unable to update my new EOS R5 firmware

joebult — Sat, 18 Oct 2025 15:33:02 GMT

Good morning you fine people. Ok, here is the issue. I've downloaded the file from the Canon website onto the scandisk. Put said disk in camera and navigate to the update area. As soon I I press ok that I want to update, the camera thinks and then the window pops up with the new firmware file, but a second later it shuts down and kicks me back to the menu screen. I can't even press ok on the file. Please help!!! Oh yeah...batteries are at 100%

Re: Unable to update my new EOS R5 firmware

jrhoffman75 — Sat, 18 Oct 2025 16:21:58 GMT

If you have both cards in the camera remove the one that doesn't have the FIR file.

Re: Unable to update my new EOS R5 firmware

joebult — Sat, 18 Oct 2025 16:28:24 GMT

No dice...same thing happens

Re: Unable to update my new EOS R5 firmware

jrhoffman75 — Sat, 18 Oct 2025 16:52:35 GMT

Did you try with a freshly formatted card?

Re: Unable to update my new EOS R5 firmware

March411 — Sat, 18 Oct 2025 17:01:08 GMT

Is it loaded on the SD or the CF card?

Mine is fickle, has to be the CF card

Re: Unable to update my new EOS R5 firmware

joebult — Sat, 18 Oct 2025 18:02:08 GMT

Yes sir....several times

Re: Unable to update my new EOS R5 firmware

Cyrilbrd — Mon, 20 Oct 2025 12:42:33 GMT

Hi,
If referring to the R5 Mark II, I personally used the Canon Camera Connect app.

Re: Unable to update my new EOS R5 firmware

joebult — Mon, 20 Oct 2025 12:38:07 GMT

At first I used the SD card, then tried the CR card. Same thing happens.

Re: Unable to update my new EOS R5 firmware

joebult — Mon, 20 Oct 2025 12:38:34 GMT

No...just the R5

Re: Unable to update my new EOS R5 firmware

joebult — Mon, 20 Oct 2025 12:42:39 GMT

I mean CF card

Re: Unable to update my new EOS R5 firmware

jrhoffman75 — Mon, 20 Oct 2025 12:45:17 GMT

Give Canon support a call. 1-800-OK-CANON.