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MacBook EFI Firmware Update 1.4

This update eliminates the noise  made by the optical disk drive during wake from sleep on MacBook computers. When installation is complete, please run Software Update again, and install SuperDrive Firmware Update 3.0

To complete the firmware update process, please follow the instructions in the updater application (/Applications/Utilities/MacBook EFI Firmware The updater will launch automatically when the installation is complete.

For more information about EFI Firmware, please visit the following:

For additional information, please visit: OS X Mountain Lion: Firmware updates may keep reappearing in the Mac App Store

Boot ROM or SMC Version Information: 

MacBook5,1 will update to MB51.007D.003

MacBook5,2 will update to MB52.0088.005 

File Size: 3.14 MB

System Requirements Supported Languages