MacBook Pro EFI Firmware Update 1.4
System Requirements:
Mac OS X 10.4.10 or later
MacBook Pro (Core 2 Duo)
File Size: 2.81MB
This update improves the performance and reliability of Intel Core 2 Duo processors and fixes issues with Boot Camp for MacBook Pro computers.
After the firmware is successfully applied to your computer, your BootROM Version will be one of the following:
MBP21.00A5.B07
MBP22.00A5.B07
You can confirm the version of the BootROM installed on your computer using System Profiler.
To complete the firmware update process, please follow the instructions in the updater application (/Applications/Utilities/MacBook Pro EFI Firmware Update.app). The updater will launch automatically when the Installer closes.
For more information about firmware updates for Intel-based Macs, please visit: About firmware updates for Intel-based Macs