This might prove helpful.
On Wednesday, Apple released its MacBook Air EFI Firmware Update 2.8 for the mid-2013 and early-2014 MacBook Air notebooks. The update, a 4.8 megabyte download, adds the following fixes and changes:
– Improves reliability when waking from sleep and when booting while certain USB and Thunderbolt devices are connected.
– This update also addresses a rare memory issue that may cause the system to randomly reboot, and an issue where the system may not properly sleep the built-in display when an external display is connected while running Windows using Boot Camp.
The MacBook Air EFI Firmware Update 2.8 is available as a free download from the Apple Support website, or via the Software Update app on compatible MacBook Air models.
If you’ve tried the update and have any feedback to offer, please let us know in the comments.
One reply on “Apple releases MacBook Air EFI Firmware Update 2.8 for mid-2013, early-2014 MacBook Air notebooks, addresses sleep, peripheral issues”
I have a mid 2013 11″ MBA running mavericks. I just installed this update and got a black screen on my previously working Windows 7 Pro x64 boot camp installation. Thus far, I have not been able to solve this. The black screen persists through all recovery modes. All my restore points have failed with an unknown error.
I wish I hadn’t installed the update.