Apple has issued a System Management Controller (SMC) update for the MacBook Pro with Retina Display, which fixes several sleep and wake issues for users running Mac OS X 10.7.4 Lion. Additionally, like the SMC updates recently issued for MacBook Air models (see “MacBook Air SMC Updates 1.5 and 1.6,” 27 July 2012), this one enables Power Nap support when running 10.8 Mountain Lion. (Free, 530 KB)
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Verify Turned-Off Apple Wireless Keyboard
Can't tell if you've turned off your Apple Wireless Keyboard to prevent it from waking up an iOS device or running down its batteries? Tap the Caps Lock key, and if it illuminates, the keyboard is on; otherwise not.
- MacBook Air SMC Updates 1.5 and 1.6 (27 Jul 12)