The MacBook Pro EFI Firmware Update will update the EFI firmware on your MacBook Pro notebook computer. Your MacBook Pro'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.
· MacBook Pro (15-inch, late 2008) models
What's New in This Release: [ read full changelog ]
· Recommended for MacBook Pro (mid 2012) models. This update resolves an issue which can cause the system to hang during heavy processor loads.