Apple MacBook EFI Firmware Update enables Lion Recovery from an Internet connection on MacBook (Mid 2010) models.
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 during this update.Boot ROM or SMC Version Information: MB71.0039.B0E
Updated on Mar 12 2019