Apple Releases Wi-Fi Update For 2012 Macs To Help With 5GHz Band Compatibility

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Screen Shot 2012-12-17 at 3.13.15 PM

Apple has released a minor Wi-Fi firmware update for “late” 2012 Macs in the Mac App Store. Mac Wi-Fi Update 1.0 address compatibility with the 5GHz Wi-Fi band, a more modern band that offers greater signal quality and less interference than the 2.4GHz band. The update is available for free and clocks in at less than 2MB.

This update is recommended for all late 2012 Mac systems. This update improves compatibility when using the 5GHz band in Wi-Fi.

Boot ROM or SMC Version Information: To confirm the update has been applied, the CFBundleVersion string of the AirPortBrcm4311.kext will need to be checked.

New driver delivered in update: AirPortBrcm4331.kext CFBundleVersion = 612.20.15

/System/Library/Extensions/IO80211Family.kext/Contents/PlugIns/AirPortBrcm4331.kext/Contents/Info.plist

Source: Apple

  • TheMacGuy

    This isn’t for “all” 2012 Macs. Read the update description “for all Late 2012 Mac Systems” meaning the new 13′ Retina MBP, new Mac Minis, and new iMacs. 15′ Retina MBP, regular MBP, and other Macs from Early or Mid 2012 are not affected.

  • Jonathan Alexander Llamas

    This isn’t for “all” 2012 Macs. Read the update description “for all Late 2012 Mac Systems” meaning the new 13′ Retina MBP, new Mac Minis, and new iMacs. 15′ Retina MBP, regular MBP, and other Macs from Early or Mid 2012 are not affected.

    Thank you. It makes sense why my mid 2012 MBA doesnt show that i have an update.

  • jwurth

    Quill’s Coffee, eh? I forgot there was a Cult of Mac writer here in town. We should meet for coffee….love the site!