i can't update EFI and SMC firmware

[blackwhite999]

hi everyone,
i see on support apple pages have new version for my iMac 27" late 2013, i recently download and install but i got alert not support. I don't understand, pls pls help, thank you!
http://support.apple.com/en-us/HT201518

 

[redheeler]

I'm no expert on this, but it looks like you're already running a version newer than the one you downloaded. The one you downloaded was released in 2013 for Mountain Lion so this is very likely, especially since the Yosemite installer does update the Firmware.

 

[blackwhite999]

Thanks for your answer!