Apple Enables 'Power Nap' for Retina MacBook Pro With SMC Update

NewImage
Apple has issued a system management controller (SMC) update for the MacBook Pro with Retina display, enabling Power Nap support in OS X Mountain Lion.

This update fixes several sleep/wake issues to improve the stability of MacBook Pro with Retina display (Mid 2012) computers and is recommended for all users running OS X v10.7.4. It also enables Power Nap support for users running OS X v10.8 or later.

The update is available via Apple's software download webpage, Software Update for those under OS X Lion and via the Mac App store for those with OS X Mountain Lion installed.

Popular Stories

streaming black friday 2025

Black Friday Streaming Deals Include Big Savings on Disney+, Hulu, Apple TV, and More

Monday November 24, 2025 8:03 am PST by
We've been focusing on deals on physical products over the past few weeks, but Black Friday is also a great time of year to purchase a streaming membership. Some of the biggest services have great discounts for new and select returning members this week, including Disney+, Hulu, Paramount+, Peacock, and more. Note: MacRumors is an affiliate partner with some of these vendors. When you click a...
Apple Foldable Thumb

Foldable iPhone to Debut These Three Breakthrough Features

Tuesday November 25, 2025 7:09 am PST by
Apple's first foldable iPhone is expected to launch alongside the iPhone 18 Pro models in fall 2026, and it's shaping up to include three standout features that could set it apart from the competition. The book-style foldable will reportedly feature an industry-first 24-megapixel under-display camera built into the inner display, according to a recent JP Morgan equity research report. That...
General Black Friday Deals 25 Red

Apple Black Friday Deals Available Now on AirPods, iPads, Accessories, and More

Friday November 21, 2025 8:48 am PST by
We're only a few days away from Black Friday, which will take place on Friday, November 28 in 2025. As always, this will be the best time of the year to shop for great deals, including popular Apple products like AirPods, iPad, Apple Watch, and more. In this article, the majority of the discounts will be found on Amazon. Note: MacRumors is an affiliate partner with some of these vendors. When...
General Apps Messages Redux

Singapore Orders Changes to iMessage by December

Tuesday November 25, 2025 6:39 am PST by
Singapore has ordered Apple to block or filter messages on iMessage that impersonate government agencies, requiring the company to implement new anti-spoofing protections by December as part of efforts to curb rising online scams, the Straits Times reports. Singapore's Ministry of Home Affairs (MHA) said that it had issued an Implementation Directive to Apple under the Online Criminal Harms...
maxresdefault

The MacRumors Show: iPhone 18 Pro Looks Like a Huge Upgrade

Friday November 21, 2025 9:10 am PST by
On this week's episode of The MacRumors Show, we talk through all of the new features and improvements expected to come to next year's iPhone 18 Pro and iPhone 18 Pro Max models. Subscribe to The MacRumors Show YouTube channel for more videos Apple's next-generation iPhones are less than ten months away and we already have a good idea about what to expect based on corroborated leaks, rumors,...
iOS 26

iOS 26.2 Adds These New Features to Your iPhone

Thursday November 20, 2025 10:50 am PST by
iOS 26.2 is currently in beta testing. The upcoming update includes a handful of new features and changes on the iPhone, including a new Liquid Glass slider for the Lock Screen's clock, offline lyrics for Apple Music, and more. In a recent press release, Apple confirmed that iOS 26.2 will be released to all users in December, but it did not provide a specific release date. Keep reading...
iOS 26 on Three iPhones

iOS 27 Will Reportedly Have Two Key Upgrades

Sunday November 23, 2025 8:48 am PST by
iOS 27 will reportedly have two major elements: quality improvements and new AI features. In his Power On newsletter today, Bloomberg's Mark Gurman said that iOS 27 will be similar to Mac OS X Snow Leopard, in the sense that Apple is focused on improving "quality and underlying performance" over adding new features. Gurman said there is one exception to this rule, though, as he expects...
iPhone Pocket Short

iPhone Pocket is Now Completely Sold Out Worldwide

Tuesday November 25, 2025 7:16 am PST by
Apple recently teamed up with Japanese fashion brand ISSEY MIYAKE to create the iPhone Pocket, a limited-edition knitted accessory designed to carry an iPhone. However, it is now completely sold out in all countries where it was released. iPhone Pocket became available to order on Apple's online store starting Friday, November 14, in the United States, France, China, Italy, Japan, Singapore, ...
apple news banner

Apple News Loses CNN

Monday November 24, 2025 7:56 am PST by
American multinational news company CNN has abruptly pulled its content from Apple News, Semafor reports. CNN quietly removed its stories from Apple News over the weekend and there is no longer a feed from the network to subscribe to in the app. This effectively ends its distribution agreement with Apple while the two sides negotiate new terms. Discussions are apparently ongoing and CNN's...

Top Rated Comments

Fuzzi Avatar
174 months ago
And this is why I don't buy brand-new stuff.

because you get cool new features with them?
Score: 20 Votes (Like | Disagree)
SuprUsrStan Avatar
174 months ago
Holy crap! I just applied the update and the fans spinning up to maximum scared the crap out of me!
Score: 14 Votes (Like | Disagree)
M87 Avatar
174 months ago
And this is why I don't buy brand-new stuff.

I'm filled with regret every time I gaze into the beautiful display of my rMBP. Luckily I can keep the lid closed while it does awesome **** for me now.
Score: 11 Votes (Like | Disagree)
nunes013 Avatar
174 months ago
Holy crap! I just applied the update and the fans spinning up to maximum scared the crap out of me!

hahaha same here, and my cat :D
Score: 7 Votes (Like | Disagree)
bdavis222 Avatar
174 months ago
And this is why I don't buy brand-new stuff. It's better to just wait a little for all of the fixes.

Umm... This is not a fix. This is a firmware update that enables Power Nap. It doesn't matter when you upgrade to Mountain Lion, you'll still have to update your firmware to use Power Nap.
Score: 4 Votes (Like | Disagree)
Matthew Yohe Avatar
174 months ago
So, I have already downloaded and installed the SMC Update. On my Retina MacBook this caused a major pink screen issue. I have posted on the Apple Forums about it here: https://discussions.apple.com/thread/4146958

If anyone has any thoughts or has a similar issue, please respond to that thread.

MBPR 2.3ghz/16GB/256GB

Maybe try disabling all that extra crap you have running first.
Score: 4 Votes (Like | Disagree)