Apple has posted two updates for the 27-inch iMac.
The first, iMac SMC Firmware Update 1.0, “fixes Target Display Mode compatibility issues on 27-inch iMac computers.”
The second, iMac EFI FW Update 1.0, “resolves an issue that sometimes caused high processor utilization while playing audio through the headphone output mini-jack (and) resolves an issue that prevented the display backlight from turning on after powering on the iMac.”
Both updates are available via the links above or Software Update.
Obsessed with tech since the early arrival of A/UX on Apple, Sudz (SK) is responsible for the editorial direction of AppleToolBox. He is based out of Los Angeles, CA.
Sudz specializes in covering all things macOS, having reviewed dozens of OS X and macOS developments over the years.
In a former life, Sudz worked helping Fortune 100 companies with their technology and business transformation aspirations.