Macbook Air Smc Firmware Update For Mac

Macbook Air Smc Firmware Update For Mac Rating: 5,5/10 1782 votes
A SMC Firmware update for your MacBook.

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This SMC Firmware Update improves the sensing and accuracy of the MagSafe Power Adapter indicator light, and the battery charge indicator lights on MacBook (Late 2008) computers.
After this update has completed successfully, your SMC Version will be: 1.38f5.
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 will permanently indicate 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.

A new firmware update is now available for the Macbook Air which updates the SMC settings - apparently adjusting internal battery related thermal issues (i.e. After download and install, a reboot will be required, so don't download until you are plugged into your wall charger, and you have the time to reboot.It's available from Software Update.


Like all other firmware updates, if your software update on your MBA does not show it available as a download, don't go fishing elsewhere to find it, it means your particular model doesn't need it - although it looks like this one is universal for both older and newer versions of the Macbook Air. When you get a message like that, it means that you DONT need the update.There are different versions of firmware on different Apple laptops depending on the date the battery was made, if it has been replaced, the factory the battery was made in, etc.When you get a message in Software Update that you need the update, it is looking at your settings out of the factory. When you go to download, if you get an error message like the one above, it means you DON'T need the update. The downloader might provide a newer version that what you have, but if your particular firmware doesn't install it, then you don't need it.This is the type of periodic patch that drives Mac users crazy because Apple never announces the exact changes it makes, nor why some people need it nor why they don't.

They do that on purpose, because they don't want you to know that batteries come from different manufacturing sites, and that different users of the exact same model Macbook have slightly different firmware, and always will have different firmware.In general, if it doesn't appear in System Updater you don't need it. If it DOES appear in System Updater and it won't install, you don't need it either.If it continues to insist that you need to download and install it (it shouldn't after it checks your system), then give a call to AppleCare to double check if you need it or not. I called up apple care, and while their suggestions did not resolve the issue, it did remind me that it might have to do with the case-sensitive file system i'm using. Sure enough, that was it. I found the following in the system.log:Jun 30 16:54:50 xxxxxx ( posixspawnp('/Applications/Utilities/MacBook Air SMC Firmware Air SMC Firmware Update'.): No such file or directoryJun 30 16:54:50 xxxxxx ( attempts to run 'MacBook Air SMC Firmware Update'. The file is actually 'MacBook AIR SMC Firmware Update' on disk. Note the all caps AIR.

After renaming the file to what launchd is looking for, i am able to run the update without issue.the apple care person i spoke to was still on when i found the problem, so hopefully they can relay this info should anyone else call in. Apple Footer.This site contains user submitted content, comments and opinions and is for informational purposes only. Apple may provide or recommend responses as a possible solution based on the information provided; every potential issue may involve several factors not detailed in the conversations captured in an electronic forum and Apple can therefore provide no guarantee as to the efficacy of any proposed solutions on the community forums.

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