Apple today released MacBook SMC Firmware Update 1.1 which “improves the MacBook’s internal monitoring system and addresses issues with unexpected shutdowns. This update is recommended for all MacBook systems, including those that received warranty repair.”
If your MacBook shuts down randomly during use, Apple says this downloadable firmware update is now available that resolves this issue.
You can use the Software Update feature of System Preferences, or download the MacBook SMC Firmware Update v1.1 from Apple Software Download.
Note:
If your MacBook is running Mac OS X 10.4.6, you won’t be able to install the SMC Update until you update to Mac OS X 10.4.8.
MacBooks running Mac OS X 10.4.7 will be able to download and install the SMC Update, so it is not essential that you update your system software, although Apple always recommends updating to the latest version of the system software.
After this update has completed successfully, your SMC Version will be: 1.4f12.
Installation:
The updater application will be installed in the /Applications/Utilities folder.
Please follow the instructions in the updater application to complete the update process.
Here are the instructions within the updater:
To update the SMC firmware on your MacBook:
Your computer’s power cord must be connected and plugged into a working power source.
1. Quit all other open applications.
2. Click Restart in the MacBook SMC Firmware Update window and wait for your computer to restart.
The SMC firmware update starts automatically. A status bar indicates the progress of the update. During the update your computer fans will run at full speed, but will return to normal once the update completes.
Important: Do not interrupt the update.
Your computer restarts automatically when the update is completed and opens the MacBook SMC Firmware Update.
3. Click OK. The SMC firmware is now up-to-date.
If these instructions appear on your screen again, the SMC firmware update was not successful. Repeat steps 2 and 3.
For detailed information on this update, please visit this website: http://www.info.apple.com/kbnum/n304308
More info and download link here.
Related MacDailyNews articles:
What is Apple doing about MacBooks suffering from ‘Random Shutdown Syndrome?’ – October 21, 2006
Apple to repair ‘random shutdown MacBooks’ free of charge – September 08, 2006