Apple MacBook EFI Firmware Update 2.0 for Mac OS X 10.6.5 Publisher's description
from Apple Inc.
Apple MacBook EFI Firmware Update 2.0 for Mac OS X 10.6.5
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
It is highly recommended to always use the most recent driver version available.
Do not forget to check with our site as often as possible in order to stay updated on the latest drivers, software and games.
Try to set a system restore point before installing a device driver. This will help if you installed a wrong driver. Problems can arise when your hardware device is too old or not supported any longer.