iMac EFI Firmware Update
iMac EFI Firmware Update
2.1

1.0

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iMac EFI Firmware Update free download for Mac

iMac EFI Firmware Update2.1

26 September 2013

For late 2013 iMacs.

Overview

iMac (late 2013) EFI Update is recommended for iMac (late 2013) models. This update addresses an issue which may cause a black screen to appear when installing Windows 7 or Windows 8 using Boot Camp Assistant if both an external optical drive and USB thumb drive are connected to the system. This update also ensures that the system will boot by default into OS X after installation of Windows 8.

What's new in iMac EFI Firmware Update

Version 2.1:
  • Release notes were unavailable when this listing was updated.

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Maylbu
Maylbu
Sep 25 2013
2.1
0.0
Sep 25 2013
0.0
Version: 2.1
From Appleinsider. Apple's just-released iMacs receive day-one update Tuesday, September 24, 2013, 12:59 pm PT (03:59 pm ET) By Kevin Bostic Apple has released an Extensible Firmware Interface update for the late 2013 models of iMac that it just announced on Tuesday. The update brings the EFI for the late 2013 iMacs to version 2.1. It is aimed at addressing an issue sometimes occurring when installing Windows 7 or Windows 8 using Boot Camp Assistant. If both an external optical drive and USB thumb drive are connected to the system, the installation process could cause a black screen to appear. Additionally, the update makes sure that a system will boot by default into OS X after installing Windows 8. iMac (late 2013) EFI Update 2.1 is available as a free download from Apple's support pages. It requires a Mac running OS X Mountain Lion v10.8.4 (12E4022) or later. It is an 8.7MB download.
xgman
xgman
Dec 18 2012
2.0
1.0
Dec 18 2012
1.0
Version: 2.0
Huh, I have a 27" 2012 imac and it says this update is not for my machine and it isn't on software update either. What exactly is this for then?
Low-Flyer
Low-Flyer
Feb 25 2012
1.9
0.0
Feb 25 2012
0.0
Version: 1.9
The Apple Support document about 'iMac EFI Firmware Update 1.9' (https://support.apple.com/kb/DL1498) addresses iMac (Mid 2011) computers; there is no mention in that document of iMac (Early 1011) computers. Why this confusion in this MacUpdate Download page?
Acuraice
Acuraice
Feb 24 2012
1.9
0.0
Feb 24 2012
0.0
Version: 1.9
ALSO found in my software update for MID-2011 imac models(i have the 27 inch 3.4 ghz quad core i7,lion 10.7.3 installed 1 gigs ram and radeon 6970M 2 gig) Why can't apple ever get this right??????
Ikir
Ikir
Feb 24 2012
1.9
5.0
Feb 24 2012
5.0
Version: 1.9
No problems here
info-803
info-803
May 3 2009
1.4
0.0
May 3 2009
0.0
Version: 1.4
Well, it did show up in Software-Update on my 24" iMac from March 2009. I did the EFI-firmware-upgrade and everything is working fine!
Leppe
Leppe
May 3 2009
1.4
0.0
May 3 2009
0.0
Version: 1.4
This update is not only for iMacs with the Radeon card. It also shows up in the Software Update Panel from iMacs with NVIDIA cards. That's for the freezing issue in Boot Camp. So the requirements are a bit misleading... If you read the requirements on Apples website they say 10.5.6 or later. Not 10.5.6 or later with the Radeon card. Greetz.
Mac-Cognoscenti
Mac-Cognoscenti
Apr 9 2008
1.3
0.0
Apr 9 2008
0.0
Version: 1.3
This only applies to the 20 and 24 inch mid-2007 iMacs as per Apple's knowledgebase article here: http://support.apple.com/kb/HT1237
Orion-Mk-V
Orion-Mk-V
Sep 28 2007
1.2
0.0
Sep 28 2007
0.0
Version: 1.2
1.2 updater went fine. I'm now at IM61.0093.B07.
Steelcut
Steelcut
Nov 14 2006
1.1
0.0
Nov 14 2006
0.0
Version: 1.1
Hm, everything works perfekt after the update. My Boot ROM Version now says: IM51.0090.B03 Which would be right if i had a 20-inch late 2006. But i have a 17-inch late 2006 CD. So what now?
Free

1.0

App requirements: 
  • Intel 64
  • Intel 32
  • OS X 10.8.4 or later
  • Late 2013 iMac

Downloaded & Installed 9,753 times

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