Today, Apple has released an EFI Firmware update 2.1 for MacBook Airs that resolves both small issues of Apple’s latest MacBook Air [mid 2011] models brings support for Thunderbolt Display performance and enhanced stability for Lion Recovery over the Internet when operating in Thunderbolt Target Disk Mode.
About MacBook Air EFI Firmware Update 2.1
This update includes fixes that enhance the stability of Lion Recovery from an Internet connection, and resolve issues with Apple Thunderbolt Display compatibility and Thunderbolt Target Disk Mode performance on MacBook Air (mid 2011) models.
For more information about Lion Recovery, please visit http://www.apple.com/macosx/recovery/.
The MacBook Air EFI Update will update the EFI firmware on your notebook computer. Your computer’s power cord must be connected and plugged into a working power source. When your MacBookAir restarts, a gray screen will appear with a status bar to indicate the progress of the update. It will take several minutes for the update to complete. Do not disturb or shut off the power on your MacBookAir during this update.
Download EFI Firmware Update 2.1