Mid-2011 MacBook Air EFI firmware update 2.9.1 released after issues foundOn July 21, Apple released an update for the mid-2011 MacBook Air, the EFI firmware update 2.9, that was meant to address many issues, but namely a problem with the device waking from sleep. Unfortunately, that didn’t go well, so they had to pull the update.
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Mid-2011 MacBook Air EFI firmware update 2.9.1 released after issues found
