Apple today released MacBook Pro EFI Firmware Update 1.5.1 which fixes several issues to improve the stability of MacBook Pro computers.
After the firmware is successfully applied to your Mac, your Boot ROM Version will be: MBP21.00A5.B08 or MBP31.0070.B07
You can confirm the version of the Boot ROM 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.
System Requirements:
• Mac OS X 10.4.11 or later
• Mac OS X 10.5.2 or later
MacBook Pro EFI Firmware Update 1.5.1 is available via Software Update and also as a standalone installer.
More info and download link (4.9MB) here.
[Thanks to MacDailyNews Reader “Brawndo Drinker” for the heads up.]