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About Macbook Pro EFI Firmware Update 2.2
This update enables Lion Internet Recovery which starts Lion Recovery directly from Apple servers over a broadband Internet connection if the built-in recovery is unavailable. It also includes fixes that resolve issues with Apple Thunderbolt Display compatibility and Thunderbolt Target Disk Mode performance on MacBook Pro (early 2011) models.

For more information about Lion Recovery, please visit http://www.apple.com/macosx/recovery/.

The MacBook Pro 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 MacBook Pro 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 MacBook Pro during this update.


Boot ROM or SMC Version Information: After this update has successfully completed, your Boot ROM Version will be: MBP81.88Z.0047.B1E.1109091244

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注意!!這個更新只針對MBP 2011 early機型

原文大意如下:

1.此更新允許Lion在內建recovery失敗時並具備寬頻連接下直接透過Apple server進行Internet Recovery (網際網路回復).

2此更新也解決了MacBook Pro (early 2011) models 在 Thunderbolt 顯示器相容性及透過 Thunderbolt 連接儲存裝置的效能.