Canon EF 40mm f/2.8 STM Firmware Available

[Z]

Updated without issue. Not trying to rub salt in the wounds of those whose update failed, just pointing out that the majority of people have probably updated without issue. No one complains when things work.

[Zlatko]

Updated without any problems here too.

[bbasiaga]

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

[jsbraby]

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

It's probably worth it to find the shop that services your local professional photographer population and make nice with them. The shop I use probably wouldn't charge me to borrow their display 5d3 to do a lens update in store.

If you live in a large enough metro area, finding a repair shop that services Canon may give the same benefit.

[andrewkendall]

Update also broke my lens. Update freezes at 2978%, have tried many times, changed batteries and cards. Did anyone with this problem find a fix?

[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...