It's almost always in your best interest to be updated to the latest firmware.

With any hardware product, there is the possibility of a bug showing up that couldn't have been caught even with the long-term internal testing of the device.

Apple supplies firmware updates from time to time, and although very few people have any trouble after installing them, problems do crop up now and then.

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Mac firmware restoration is the process of resetting your Mac's internal firmware to a known good state.

This is a basic method for fixing a firmware update that has problems, becomes corrupt, or, for any number of reasons, fails to complete.

The following steps will take you through the process.

When Apple releases Mac firmware updates, the system undergoes a special installation procedure in which it shows a progress bar on a gray screen and then reboots.

If the charge light is blinking amber or is red, that indicates a problem with the power adapter or charging circuits in the system; you may need to have these items serviced or replaced before the update will install.

In addition to checking the power, try resetting the Mac's System Management Controller (SMC), as this controller unit is responsible for how power is handled in the system.

As reports and feedback come in, we're able to fix issues and remedy them for the end-user with a fairly simple update.

When things are smooth sailing, we'll even have the chance to add functionality and features that provide for a richer playing experience.

Then, if something goes wrong during a firmware update, you can restart your Mac from the Firmware Restoration CD and your Mac will replace the corrupt firmware with the known good version.

There are currently 6 different Firmware Restoration files that cover various Mac models.

If you have an update available but do not see the progress bar when applying it, it may not have installed properly.