Apple MacBook SMC Firmware Update 1.4 Publisher's description
from Apple Inc.
Apple MacBook SMC Firmware Update 1.4
This firmware update addresses an issue with certain MacBook and MacBook Pro models from 2007-2008 that prevents them from charging with new power adapters.
Your computer's power cord must be connected and plugged into a working power source, or your battery must be at least 25% charged.
For more information see "http://support.apple.com/kb/TS3499".
When your computer restarts a gray screen will appear with a status bar to indicate the progress of the update.
Your computer's fans will run at full speed during the update but will return to normal speed once the update completes.
Do not disturb or shut off the power on your computer during this update.
It is highly recommended to always use the most recent driver version available.
Do not forget to check with our site as often as possible in order to stay updated on the latest drivers, software and games.
Try to set a system restore point before installing a device driver. This will help if you installed a wrong driver. Problems can arise when your hardware device is too old or not supported any longer.