Apple releases EFI Firmware Updates for MacBook Pro, MacBook Air, Mac mini, and iMac

Apple today released EFI Firmware Updates for MacBook Pro, MacBook Ai, Mac mini, and iMac:

• Macbook Pro EFI Firmware Update 2.3 (4.17 MB)
This update fixes several issues to improve the stability of MacBook Pro (early 2011) computers and is recommended for all users.

• MacBook Air EFI Firmware Update 2.2 (4 MB)
This update fixes several issues to improve the stability of MacBook Air (mid 2011) computers and is recommended for all users.

• Mac mini EFI Firmware Update 1.4 (4.01 MB)
This update fixes several issues to improve the stability of Mac mini (mid 2011) computers and is recommended for all users.

• iMac EFI Update 1.7 (3.69 MB)
This update enables Lion Recovery from an Internet connection and includes fixes that resolve issues with Apple Thunderbolt Display compatibility and Thunderbolt Target Disk Mode performance on iMac (early 2011) models.

All of the EFI Firmware Updates are available via Software Update and also via standalone installers (for more info and download links, click the links above).

11 Comments

    1. That’s a kernel panic. Unless you’ve done some seriously hacky stuff to your system, a kernel panic is a sign of a hardware malfunction. If I were you, I’d make an appointment at my nearest Genius Bar or Apple Authorized Service Provider.

    1. I wasn’t paying attention during a bunch of updates just now, so did not know whether the firmware update was included, so I checked my Boot ROM version. It is different from the one that is supposed to be there after the firmware update. Went to the Apple site and downloaded the firmware update, tried to apply it, but was told it was not supported on my system. I do have a mid-2011 MBA, so not sure what’s going on. Maybe it has not come to Japan yet?

    1. With your mentality, you should stick with Mac OS 9.1.2. There is always a risk of problems, but there is always benefits. If you don’t apply this and you own one of the supported Macs, you could run in to trouble, because it is broke.

Reader Feedback

This site uses Akismet to reduce spam. Learn how your comment data is processed.