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MacBook Air EFI Firmware Update 2.9.1

(2014-07-30)

Apple has released MacBook Air EFI Firmware Update 2.9.1. This update replaces EFI Firmware Update 2.9 and is recommended for MacBook Air (Mid 2011) models. This update addresses an issue where systems may take longer to wake from sleep than expected and fixes a rare issue that may cause fans to run at full speed after waking from sleep.

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