iMac Hard Drive Firmware Update 1.0 fixes a hard drive issue that may prevent some iMac (21.5-inch and 27-inch, Mid 2010) systems from booting properly.
You can download it at this link: http://support.apple.com/kb/DL1378
Announcements, Apple, iMacs, Software Updates
iMac Hard Drive Firmware Update 1.0
26
Apr
Apr
