MacBook EFI Firmware Update 2.0
This update is recommended for the MacBook (Mid 2010) model. The update resolves an issue where an attached external display may occasionally incorrectly show a purple coloration.
The MacBook 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 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: After this update has successfully completed, your Boot ROM Version will be: MB71.0039.B0B