Trouble Updating Firmware Version 1.0.8 [Windows]for RF 24-70mm f/2.8 Lens

[out of focus]

From Canon's website, I've downloaded the most recent firmware (version 1.0.8) for the RF 24-70mm lens and have extracted the files, but each time that I've tried it, I get a message stating that Adobe Acrobat Reader can't open the .afu file.
I'm wondering if anyone has had a similar issue and if there's a way around the problem.

 

[Dean Wilson]

The .afu is not an Acrobat file.

The method I use is:

Format the memory card.
Relocate the RF023108.auf file to the root directory of the memory card.
Mount the lens.
Set the camera mode to M (Manual)
Go in the menu and update the firmware.

After it has finished:

Double check the firmware version.
Turn the camera off.
Remove the battery.
Wait 10 seconds before reinserting the battery and turning back on.
Format the memory card.

 

[out of focus]

Thank you for your reply, Dean. That's why I'm confused as to why I get the message that I do regarding Acrobat. After I downloaded the most recent version of the firmware, I'm given no option to open the .auf file any other way, and I've tried downloading it on multiple occasions, all with the same result.

 

[Dean Wilson]

The .auf file is NOT MEANT to be opened.


In the zip file you downloaded from Canon there is a File "RF023108.afu" and a Folder "update-procedures-pdf".

Open the Folder called "update-procedures-pdf". In that folder is a file called "lens-firmwareupdate-en.pdf"

Open the "lens-firmwareupdate-en.pdf" file and beginning on page 2 are the complete instructions.

 

[out of focus]

I had read the instructions that were downloaded, and I never had this issue when I updated the firmware for the camera body, but the problem in trying to update the firmware for the lens lies with what gets downloaded.
All that gets downloaded is the following, and I can't seem to do anything with the RF023108.afu so that it's not identified as a .pdf:

 

[Dean Wilson]

It appears that you have the software file "associated with" Adobe.

Give me a couple minutes...

 

[Dean Wilson]

UPDATE:

The ONLY way I have discovered how to disassociate the .afu file is to uninstall Adobe Reader. I have tried various techniques, but this is the only way I have discovered yet that works.

There are many Readers that can open .pdf files. The one I use is Foxit PDF Reader (Free)

 

[out of focus]

Thank you for your message, Dean. I think that I might end up having to uninstall it since I've also been unable to find a way to update the firmware.

 

[out of focus]

I uninstalled Acrobat Reader that was creating all the trouble and updated the firmware successfully right after that. Thank you!

 

[Dean Wilson]

Remember. If you install Acrobat Reader in the future the .afu files will still be associated with it.