Apple Releases Firmware Update to Address Screen Flickering on 27-Inch iMacs - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

Apple Releases Firmware Update to Address Screen Flickering on 27-Inch iMacs

Apple today released 27-inch iMac Graphics Firmware Update 1.0, addressing recent complaints of screen flickering on the company's newest iMac models.

About 27-inch iMac Graphics Firmware Update 1.0
Updates the graphics firmware on ATI Radeon HD 4670 and 4850 graphics cards to address issues that may cause image corruption or display flickering.

Installation instructions for the firmware update, which weighs in at 683 KB and requires Mac OS X 10.6.2, are available in the associated support document for the release.

Apple's new 27-inch iMac models have been plagued with reports of issues since their launch beginning in late October. Early reports of Flash performance issues were fixed with the release of Mac OS X 10.6.2, but more recent reports have revealed machines being delivered in a non-functional state or with cracked screens.

Related Roundup: iMac
Buyer's Guide: iMac (Don't Buy)
Related Forum: iMac

Popular Stories

apple price hike

Apple Just Increased Prices on MacBooks, iPads, and More

Thursday June 25, 2026 5:44 am PDT by
Apple today dramatically increased device prices across multiple product lines. Subscribe to the MacRumors YouTube channel for more videos. After temporarily taking it down earlier today, Apple's online store is back up with a series of product price increases. The changes are as follows: HomePod mini: $129, up from $99 (+$30) HomePod: $349, up from $299 (+$50) Apple TV: $199, up from...
iphone x flexible oled display

Apple Plans Wider Color Gamut for Future MacBook Pro, iMac, and iPad Pro

Monday June 29, 2026 6:35 am PDT by
Apple plans to adopt OLED panels capable of displaying a much wider range of colors, according to a new report from research firm TrendForce. The new panels would cover 95% of the BT.2020 color standard, which describes a far broader spectrum of colors than the DCI-P3 standard Apple's screens currently target. In practice, that means deeper, more accurate reds, greens, and blues. Reaching...
LEGO imac g31

LEGO Considering Bondi Blue iMac G3 Set

Tuesday July 14, 2026 5:12 pm PDT by
LEGO today said the iMac G3 project submitted for consideration on its "Ideas" site has been moved to Parking Lot status, which means it hasn't been ruled out and could still possibly be turned into an official LEGO set. On its "Ideas" website, LEGO lets fans submit mockups and suggestions for future LEGO sets. Any project that gets at least 10,000 votes goes to the LEGO Review Board and has ...