If you own the recently released MacBook, MacBook Pro and MacBook Air, there should be a notification to download two firmware updates for your machine. These include the EFI and SMC Firmware updates that improves stability and improves the sensing and accuracy of the MagSafe Power Adapter indicator light and the battery charge indicator lights respectively. Not much details from Apple, as usual, about such updates. But always good to apply them.

As always whenever you do such updates, make sure you are connected to the AC Adapter and remove any external devices that are connected to your machine. Lastly, close all applications and ensure you have your data backed up before you do the updates.

During the EFI Firmware update, do note the following:

• Double-click the appropriate .pkg file to start the firmware update process. (The installer puts the Firmware Updater in the /Application/Utilities folder and opens it automatically.)
• Read the onscreen instructions and click Shut Down to proceed with the update. The firmware image will be loaded onto your computer. Your computer will shut down, but the update will not be installed until the next step.
• Turn on your computer but do NOT hold the power button down. The screen will turn black and remain in that state for up to 40 seconds. A gray screen will appear and a status bar indicates the progress of the update.
• Important: Do not unplug, shutdown or restart your computer while the update is taking place.

For the MacBooks:

• MacBook EFI Firmware Update 1.3 – download link
• MacBook SMC Firmware Update 1.2 – download link

For the MacBook Pros:

• MacBook Pro EFI Firmware Update 1.6 – download link
• MacBook Pro SMC Firmware Update 1.2 – download link

For the MacBook Airs:

• MacBook Air EFI Firmware Update 1.1 – download link
• MacBook Pro SMC Firmware Update 1.2 – download link

Do let us know if you observed any improvements or problems doing this firmware updates.

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