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Apple outs EFI updates for latest iMacs, 13-inch MacBook Pro

updated 07:30 pm EST, Mon December 17, 2012

Accompanies general Mac Wi-Fi Update issued earlier today

Alongside the Mac Wi-Fi Update that Apple brought out earlier on Monday, the company has now included EFI updates for the most recent iMac and 13-inch MacBook Pro Retina models. Both EFI updates offer other fixes and improvements, but are clearly designed to complement the Wi-Fi update in these models. The iMac update covers both the 21.5-inch and 27-inch "late 2012" (thin at the edges) models, while the MacBook Pro update is aimed solely at the 13-inch "late 2012" MacBook Pro with Retina display, rather than any other variation.

The iMac update (which is numbered v2.0) changes the build version of the Boot ROM or SMC version build 010A.05, and requires that the product already have EFI version 010A before applying the update. According to Apple, the update also contains general performance fixes pertaining to sleep and Thunderbolt as well as improving compatibility when using the 5GHz band in Wi-Fi. The ROM version after the update is applied should be IM131.88Z.010A.B05.121115114. The update is 4.32MB in size and requires OS X 10.8.1 (Mountain Lion) or later.

The update for the 13-inch "late 2012" Retina MacBook Pro is version 1.1, and also improves sleep performance and fixes and HDMI display issue, along with enhancing Thunderbolt router support and complementing the Wi-Fi update by improving compatibility when using the 802.11n band of 5GHz in Wi-Fi. To use the update, the MacBook Pro must be running Mountain Lion 10.8.1 or higher, and have an EFI version of 0106.01. After the update is complete, the build version of the Boot ROM will be listed as 0106.03 and the ROM version as MBP102.88Z.0106.B03.1211161133. The update is 4.76MB in size, and like all firmware updates requires that the MacBook be plugged in for continuous power while it is applied.




by MacNN Staff

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