Apple has released MacBook Air EFI Firmware Update 2.8, which follows this week’s earlier update to the system management controller (SMC) for MacBook Air laptops (see “MacBook Air SMC Firmware Update 2.0,” 10 June 2014). For MacBook Air models released in the middle of 2013 and early 2014, this firmware update improves reliability when waking from sleep and when booting while certain USB and Thunderbolt devices are connected, plus fixes a rare memory issue that could cause the system to reboot. It also addresses a complex bug that prevented the built-in display from sleeping while connected to an external display and running Windows using Boot Camp. As with other firmware updates, it’s best to rely on Software Update to ensure you get the right update for your specific model. Also be careful not to interrupt the update process! (Free, 4.8 MB, 10.8.5+)
Extract Directly from Time Machine
Normally you use Time Machine to restore lost data in a file like this: within the Time Machine interface, you go back to the time the file was not yet messed up, and you restore it to replace the file you have now.
You can also elect to keep both, but the restored file takes the name and place of the current one. So, if you have made changes since the backup took place that you would like to keep, they are lost, or you have to mess around a bit to merge changes, rename files, and trash the unwanted one.
As an alternative, you can browse the Time Machine backup volume directly in the Finder like any normal disk, navigate through the chronological backup hierarchy, and find the file which contains the lost content.
Once you've found it, you can open it and the current version of the file side-by-side, and copy information from Time Machine's version of the file into the current one, without losing any content you put in it since the backup was made.
- MacBook Air SMC Firmware Update 2.0 (10 Jun 14)
MacBook Air EFI Firmware Update 2.8
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