Firmware Restoration CD 1.3

After the "MacBook Pro EFI Firmware Update 1.3", Apple released a Firmware restoration CD dedicated to Intel-based Mac. As illustrated by manu Notes, such a CD should not be used without a clear understanding of its function.

The Firmware Restoration CD can restore the firmware of an Intel-based Macintosh computer.
Note: Restoring your firmware will reset some of your computer’s preferences to defaults.
You can only use this to restore the firmware after an interrupted or failed update. If your computer is already in this state, you’ll need to download the software and create the CD on another Macintosh computer, or you can take your computer to an Apple Store or Apple Authorized Service Provider to restore your firmware. This CD can be created on both PowerPC- and Intel-based Macintosh computers.
Note: This CD cannot be used to return an Intel-based Macintosh computer’s firmware to a previous version if a successful update has already been performed.
To restore your computer’s firmware, you must first create a CD using the disk image named “FirmwareRestorationCD.dmg” by following these steps:
1. Open Disk Utility (located at /Applications/Utilities).
2. Click the Burn icon or select the “Burn…” menu item from the Images menu.
3. Navigate to where FirmwareRestorationCD.dmg is located, and click the Burn button.
4. Insert a blank recordable CD.
5. Click the Burn button to create the Firmware Restoration CD. The files are burned to the disc.
Next, use the Firmware Restoration CD to restore your Firmware:
6. Ensure that the computer you are trying to restore is plugged into an AC outlet.
7. Turn on the computer and continue holding down the power button until the LED blinks rapidly followed immediately by a successive series of blinks (3 quick blinks, 3 slow blinks, 3 quick blinks). Insert the Firmware Restoration CD while the lights are blinking, then release the Power button.
8. Insert the Firmware Restoration CD. You will hear a long tone once the recovery process has begun.
A progress bar appears beneath an Apple logo on a gray screen. The progress bar indicates the firmware is being updated. Do not unplug, shut down, or restart the computer during the update or you will need to start the restoration process again beginning with step 6.
The computer will restart automatically after the firmware is updated.
This information is also available at the following url: http://www.info.apple.com/kbnum/n303469

A CD to burn and store in a safe place together with the instructions.