Canon EF 40mm f/2.8 STM Firmware Available

[KenQ]

I have same problem. Called into Canon's support. They have asked me to send it in for service.

 

[victorwol]

Thanks for the idea to rent a body to do the firmware update. I want to grab one of these lenses soon, and am assuming that what is in stock now is probably the old firmware. My newest body is a 40D, so I'll have to see if I can get my local camera shop to help me out with with the update. Maybe I can give them $20 for 10minutes use of one of their bodies.

-Brian

Why not to send it to Canon? It has to be covered by warranty, it's not yiur fault the lens has a bug...

 

[Rob Wiebe]

Getting same error on 5D3. Can't update. Removed lens, reformatted card, downloaded again, same errors. stalls at about 66 % or get the thousand percent number.(on a Mac by the way). Removed lens, and battery grip, was able to get out of the try again cycle and all ok with other lenses, so far. Pancake a bust for now.

Update: seeing some comments in other forums that install issue might be related to Mac and Mountain Lion and additional hidden file?

 

[KenQ]

I actually went to Canon Japan's website and downloaded the firmware from there. Same result... busted 40mm.

 

[Rob Wiebe]

Could those with problems identify Mac or Windows?

 

[KenQ]

I tried with:
Mac (Snow Leopard)
Windows 7 32-bit
Windows 7 64-bit

 

[chops411]

Updated with a T4i and everything went fine. Used a Mac.

 

[andrewkendall]

Mountain Lion + 5D Mark III

 

[andrewkendall]

Update: seeing some comments in other forums that install issue might be related to Mac and Mountain Lion and additional hidden file?

Cheers. I just formatted a card with Windows XP and transferred only the firmware file, still no joy.

 

[KenQ]

someone in another forum tried the firmware update with another full battery and was successful. i will try it when i get home. but someone here may want to give it a try...

 

[o2atoman]

I was about to update my firmware but before I did, I tried if I have AF problem like everyone does. So I pushed the barrel while my 60D was turned off and I was surprised that the AF on 40mm was working fine. I even tried it 3 times. I guess I have a good copy and don't need that update anyway.

 

[TrumpetPower!]

I've yet to have a problem, so I'll be waiting for the next version of the firmware before upgrading.

b&

 

[EvilTed]

Mine updated no issues using 5D MK3 running latest firmware.

I always download files off the Internet using FireFox on my Mac (10.8).
Safari can corrupt files, especially firmware.
I always use the SD card and turn off the other CF card and take it out of the camera.

HTH

ET

 

[victorwol]

Updated fine with a Windows machine and a 1D X

 

[aZhu]

Just out of curiosity, for all those that are having issue updating the firmware, did you pre-order your 40mm? I'm wondering if this issue has to do with earlier releases of the lens. I pre-ordered mine and I'm having this update issue.

 

[KenQ]

Yes, I had pre-ordered mine.

 

[bubeli]

Great! Finally it worked. The problem should just be the battery. I tried with another battery, 100% charged, and it worked! The Lens now work again! File (for Mac) downloaded from the U.S. site with Safari on Lion Mountain. So I do not think it's a matter of the browser or OS. But only of batteriy. I hope I can be of help to someone.
Mine 40 STM is not preordered.

Thanks KenQ!!!

 

[pmackey]

Great! Finally it worked. The problem should just be the battery. I tried with another battery, 100% charged, and it worked!...

I had a similar experience. Failed several times in the same manner as other people have described here. I then saw your post and tried one of my spare batteries (charged to 100%)... still no go. Finally, I tried my other spare battery, again fully charged, and it work fine.

Very strange. I did buy this lens very soon after they hit the market so I wonder if it is an early shipment that has this issue. I did the upgrade on a 5Dmk3 running firmware 1.1.3

 

[JohnnyWashngo]

Well I tried the update several times this morning to no success.

I had two fully charged batteries in my grip, latest 5Dm3 firmware and a freshly formatted SDHC card with the firmware for the lens copied over using my Linux development machine. It got to 69% then jumped to 2978% and stayed there for several minutes before I removed the battery magazine. This happened each time I tried to do the updated.

Would love to get it working but also know what the issue is. A firmware update like this should be relatively simple to do technically speaking

 

[ogalvan]

For people who have problems with the update, try this:

Before put the lens into camera:

- Baterry info -> INFO -> DELETE ALL registered batteries

***** Try with the battery at 100%, fresh from the charger !!! If don´t work try with another freshly charged 100% ******

My case:

5D Mark III v1.1.3 without grip
Canon EF 40mm 2.8 STM ** DEAD **
CF with lens firmware

With my first battery, don´t work (crash, red light, ...)
With my second battery, the same (2698%Done, crash)
With my third battery, WORK !!! DONE !!

I think the problem is firmware check the battery, I don´t know....

Regards from Spain
Oscar Galvan