Apple MacBook EFI Firmware Update enables Lion Recovery from an Internet connection on MacBook (Mid 2010) models.
For more information about Lion Recovery, please visit this website: http://www.apple.com/macosx/recovery/
The MacBook EFI Firmware 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 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