The 1.0 version of 27-inch iMac Display Firmware Update for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The actual developer of this software for Mac is Apple, Inc. The application lies within System Tools, more precisely General. We recommend checking the downloaded files with any free antivirus.
From the developer:
27-inch iMac Display Firmware Update 1.0 updates the display firmware on 27-inch iMac systems to address issues that may cause intermittent display flickering.
The 27-inch iMac Display Update will update the display firmware on your iMac. Do not disturb or shut off the power on your iMac during this update.
You may want to check out more Mac applications, such as Bluetooth Firmware Updater, which might be similar to 27-inch iMac Display Firmware Update.
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