Power Mac G4 Cube Firmware Update 4.1.9: Information and Software

This article contains the About the G4 Cube Firmware Update 4.1.9 document and links to the G4 Cube Firmware Update 4.1.9.

The G4 Cube Firmware Update 4.1.9 will run only on G4 Cube models running Mac OS 9.1 or later from a local hard disk. If you are using Mac OS X on your Cube, you must start up from a local Mac OS 9.1 or later writeable partition (not a CD or network disk) before following the update instructions.

Firmware Updates are also available for Power Mac G4 models and iMac computers with slot-loading CD or DVD drives.

Firmware Update 4.1.9 includes improvements to starting up Mac OS X from the local hard disk, FireWire target disk mode, network startup, and system stability. This update also adds support for additional security options that allow the Open Firmware to be password-protected.

Before you install the G4 Cube Firmware Update 4.1.9, read the instructions below. You may want to print them for reference.

1. Start up your computer from a hard disk connected to your computer using Mac OS 9.1 or later.
2. Double-click the G4 Cube Firmware Updater icon.

Note: If a message says your firmware is up-to-date with version 4.1.9 of the G4 Cube Firmware Update, or that this version of the G4 Cube Firmware Updater will not run on this computer, then you do not need this update. If a message says you need to install Mac OS 9.1 or later, the Firmware Updater will not run until you do so.

3. Follow the onscreen instructions. When prompted, click Shut Down in the dialog box to shut down your G4 Cube.
4. Carefully lay your G4 Cube on one side and place it on a soft cloth.
5. Locate the programmer's button on the bottom of the G4 Cube, next to the reset button. Press and hold in the programmer's button. You may need to use a pen or a straightened paper clip.



6. While you hold in the programmer's button, press the Power button on the top of your G4 Cube to start it up.
7. Continue to hold in the programmer's button until the Power button light flashes rapidly. Release the programmer's button when you see the Power button light flashing rapidly. The update starts automatically.
   A status bar shows the progress of the update. A message notifies you when your computer's firmware has been successfully updated to version 4.1.9.
   If a message says the update was not completed successfully, review the instructions and begin the update process again.
8. Shut down your G4 Cube from the Finder.
9. Carefully turn your G4 Cube right side up, then restart it by pressing the Power button on top of the Cube.

Note: Avoid moving your G4 Cube while it is flashing software.

For more information, see http://www.apple.com/support.

Note: After you install this update, the parameter RAM (PRAM) is reset. This may reset some of your control panels to their default settings. See Mac Help, available in the Help menu, for more information on changing your control panel settings.

Earlier versions of this software may be available at http://support.apple.com/downloads.

For help with downloading, see Software downloads: Formats and common error messages.

All software available from this site is covered by a software license agreement included with this software.

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