Apple has released three System Management Controller (SMC) firmware updates for its MacBook lineup: MacBook Pro SMC Firmware Update 1.8 (703 KB; mid-2012 models), MacBook Pro Retina SMC Firmware Update 1.2 (712 KB; mid-2012 models), and MacBook Air SMC Update 1.9 (1.09 MB; mid-2012 and mid-2013 models). All three address battery-related issues, where your system could hang or the battery could stop functioning altogether if the battery level goes below 1 percent. The MacBook Air SMC Update also throws in a solution for the possible problem of the system not recognizing the battery when it goes below 1 percent. As always with firmware updates, we recommend relying on Software Update or the App Store app to ensure you get the firmware update for your specific model, and be careful not to interrupt the update process. (Free)
Viewing Wi-Fi Details in Snow Leopard
In Snow Leopard, hold down the Option key before clicking the AirPort menu. Doing so reveals additional technical details including which standards, speeds, and frequencies you're using to connect, as well as what's in use by other networks. With the Option key held down and with a network already joined, the AirPort menu reveals seven pieces of information: the PHY Mode, the MAC (Media Access Control) address, the channel and band in use, the security method that's in use, the RSSI (Received Signal Strength Indication) measurement, the transmit rate, and the MCS Index. In Leopard, some, but not all, of these details are revealed by Option-clicking the AirPort menu.
- MacBook Air SMC Firmware Update 2.0 (10 Jun 14)
- TidBITS Watchlist: Notable Software Updates for 07 October 2013 (07 Oct 13)
SMC Firmware Updates for MacBook Pro, MacBook Pro Retina, and MacBook Air
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