iPhone Slowdown Lawsuits Ordered to Be Centralized in Northern California District Court - MacRumors
Skip to Content

iPhone Slowdown Lawsuits Ordered to Be Centralized in Northern California District Court

Apple's legal battle against dozens of iPhone slowdown class action lawsuits will take place in a courtroom near its headquarters.

iphone 6s battery
The U.S. Judicial Panel on Multidistrict Litigation today disclosed it has ordered [PDF] all iPhone slowdown lawsuits to be transferred to the U.S. District Court for Northern California and, with the consent of that court, assigned to the Honorable Judge Edward J. Davila for consolidated pretrial proceedings.

More than half of the 61 lawsuits—and counting—were filed in the Northern District of California to begin with, so centralization of the remaining complaints filed in other states should help to streamline the legal process.

An excerpt from the order:

These actions share factual questions arising from allegations that Apple included code in updates to its mobile operating system (iOS) that significantly reduced the performance of older-model iPhones. Plaintiffs also allege that Apple misrepresented the nature of the iOS updates and failed to adequately disclose to iPhone owners the impact the iOS updates would have on the performance of their iPhones.

Discovery regarding the engineering of the iPhone and the iOS updates likely will be technical and complex. Plaintiffs assert similar causes of action for false advertising, alleged unfair business practices, trespass to chattels, breach of contract, and unjust enrichment. Moreover, plaintiffs bring these actions on behalf of overlapping putative classes of iPhone owners.

The first lawsuit was filed in late December, after Apple revealed that it throttles the maximum performance of some older iPhone models with chemically aged batteries when necessary in order to prevent the devices from unexpectedly shutting down. The changes were first introduced in iOS 10.2.1.

Apple didn't mention the change when iOS 10.2.1 was first released, and in a statement issued a month later, it still only mentioned vague "improvements" resulting in a significant reduction in unexpected shutdowns.

Apple only revealed exactly what the so-called "improvements" were after Primate Labs founder John Poole visualized that some iPhone 6s and iPhone 7 devices suddenly had lower benchmark scores starting with iOS 10.2.1 and iOS 11.2 respectively, despite operating at maximum performance on previous versions.

Apple apologized for its lack of communication in December, and reduced the price of battery replacements to $29 for iPhone 6 and newer through the end of 2018. Apple also released iOS 11.3 earlier this week with a new feature that enables users to track their iPhone battery's health and performance status.

Moreover, when users first install iOS 11.3, all performance management features that might have been enabled are automatically disabled. If an unexpected shutdown occurs, however, the performance management is turned back on and must be disabled manually thereafter—although Apple doesn't recommend it.

In addition to the lawsuits, Apple has also faced questions from government officials and consumer protection groups in the United States, Canada, France, South Korea, and a handful of other countries.

We've already answered many frequently asked questions about Apple's power management process, which can be avoided entirely by replacing your iPhone's battery if necessary. Read our guide on how to get an iPhone's battery replaced at an Apple Store or Apple Authorized Service Provider.

Related Forum: iPhone

Popular Stories

iPhone Duo Trio

Here's What Apple's Apps Look Like on the iPhone Duo

Tuesday October 20, 2026 11:12 am PDT by
With just three days to go until the iPhone Duo is released, Apple is getting ready for the launch. Behind the scenes, the App Store now has screenshots of Apple's built-in apps running on the Duo. We've seen some apps in marketing materials, but images of the ones we haven't seen give us an idea of what it will be like using the iPhone Duo day to day. Many apps are shown in landscape...
Apple Creator Studio iWork suite

Apple Pulls Keynote, Pages and Numbers From App Store [Update: Back]

Thursday October 22, 2026 11:01 am PDT by
Apple has temporarily removed Keynote, Pages, and Numbers from the App Store, just after releasing an update that added iPhone Duo support and a new Intelligent Assistant. It is not clear if the apps were removed intentionally, or if it is a bug. Apple has not said when the apps will be reinstated, but if it was in error, they should return soon. Update: The Mac versions are back without...
M5 MacBook Pro

RIP, MacBook Ultra

Monday October 19, 2026 9:37 am PDT by
Apple today sent out invites for an experience in Los Angeles on Wednesday, October 28, and the "Pro and tell" tagline on the invitation likely means that the rumored MacBook models with touch-enabled OLED displays will stick with MacBook Pro branding instead of the once-rumored "MacBook Ultra" name. The long-rumored "iPhone Ultra" ended up being named iPhone Duo, so speculation that Apple...

Top Rated Comments

112 months ago
Can't wait to claim my piece of the pie! All $3.14 of it.
Score: 24 Votes (Like | Disagree)
QCassidy352 Avatar
112 months ago
Nobody is going to benefit from these lawsuits except the attorneys. Class actions for minor defects in consumer goods are such a colossal waste of time and court resources.
Score: 12 Votes (Like | Disagree)
magicschoolbus Avatar
112 months ago
Go get em!

Think it's bad now? Just wait until those Apple chips start going in your $3k Mac and they suddenly slow down after 3 years.
Score: 11 Votes (Like | Disagree)
rafark Avatar
112 months ago
90% of the time judges are biased towards their country/city. Couldn't they have the lawsuit take place more to the north, say around Redmond? :p
Score: 11 Votes (Like | Disagree)
112 months ago
Nobody is going to benefit from these lawsuits except the attorneys. Class actions for minor defects in consumer goods are such a colossal waste of time and court resources.
A benefit is not always of a monetary kind. If Apple are forced to stop this BS, then I as a user both new and existing will benefit from this lawsuit.
Score: 9 Votes (Like | Disagree)
supercoolmanchu Avatar
112 months ago
You might want to let Apple know. According to them, your battery controls your processor, so it's related. Bad Macbook Pro battery? Good luck rendering that 4k video sucker.
That’s just low quality trolling.

Plug the MacBook Pro into a power adapter, and render away.

Do you know anything about how computers work?
Score: 9 Votes (Like | Disagree)
Latest Stories
iPhone Duo Demand Reportedly Exceeds Apple's Expectations
iPhone Duo Demand Reportedly Exceeds Apple's Expectations
2 hours ago
iPhone Duo Launch Begins as First Orders Reach Customers
iPhone Duo Launch Begins as First Orders Reach Customers
8 hours ago
1Password for Agents Keeps Your Passwords Hidden From AI
1Password for Agents Keeps Your Passwords Hidden From AI
9 hours ago
iPhone Duo 24 Hours Later: Your Questions Answered
iPhone Duo 24 Hours Later: Your Questions Answered
9 hours ago
Apple's iWork Apps Get 'Intelligent Assistant' and iPhone Duo Support
Apple's iWork Apps Get 'Intelligent Assistant' and iPhone Duo Support
10 hours ago
Apple is Apparently Considering a Slightly Larger iPhone Duo
Apple is Apparently Considering a Slightly Larger iPhone Duo
10 hours ago
Giant iPhone Duo Displays Coming to Four Apple Stores
Giant iPhone Duo Displays Coming to Four Apple Stores
11 hours ago
Apple Pulls Keynote, Pages and Numbers From App Store [Update: Back]
Apple Pulls Keynote, Pages and Numbers From App Store [Update: Back]
12 hours ago
Apple Updates More Apps With iPhone Duo Support
Apple Updates More Apps With iPhone Duo Support
13 hours ago
Apple Will Label Apps 'Made for iPhone Duo' in App Store
Apple Will Label Apps 'Made for iPhone Duo' in App Store
16 hours ago
Amazon Takes $49 Off iPad With Prices Starting at $399.99
Amazon Takes $49 Off iPad With Prices Starting at $399.99
16 hours ago
F1 on Apple TV Now Available in Dolby Atmos
F1 on Apple TV Now Available in Dolby Atmos
17 hours ago
Apple Reveals More Than 50 Apps That Will Be Updated for iPhone Duo
Apple Reveals More Than 50 Apps That Will Be Updated for iPhone Duo
17 hours ago
Apple Blocks Certificates That Could Help Attackers Fake Websites
Apple Blocks Certificates That Could Help Attackers Fake Websites
18 hours ago
Giant iPhone Duo Installations Spotted at Apple Fifth Avenue
Giant iPhone Duo Installations Spotted at Apple Fifth Avenue
19 hours ago
iPhone Duo 2 Prototypes Include Under-Display Face ID
iPhone Duo 2 Prototypes Include Under-Display Face ID
19 hours ago
Tesla App Gains iPad and iPhone Duo Support
Tesla App Gains iPad and iPhone Duo Support
23 hours ago
Apple Reportedly Boosts iPhone Duo Orders by 44%
Apple Reportedly Boosts iPhone Duo Orders by 44%
1 day ago
Fortnite Returning to Australian App Store After Court Ruling
Fortnite Returning to Australian App Store After Court Ruling
1 day ago
Apple Ordered to Open iPhone to Rival App Stores in Australia
Apple Ordered to Open iPhone to Rival App Stores in Australia
1 day ago
Apple Suppliers Face Hurdles Cutting Circuit Board Emissions
Apple Suppliers Face Hurdles Cutting Circuit Board Emissions
1 day ago
Things Updated for iPhone Duo With Adaptive Layout
Things Updated for iPhone Duo With Adaptive Layout
1 day ago
Simplicity and Siri AI Are HomeView's Killer Features, Apple Says
Simplicity and Siri AI Are HomeView's Killer Features, Apple Says
1 day ago
iPhone Duo Reviewers Really Miss Face ID
iPhone Duo Reviewers Really Miss Face ID
1 day ago
Does the iPhone Duo Run Hot? Here's What Reviews Found
Does the iPhone Duo Run Hot? Here's What Reviews Found
1 day ago
Apple Music's New Look is Now Live on Apple's Website
Apple Music's New Look is Now Live on Apple's Website
1 day ago
Anthropic Launches Claude Duet, a Proactive AI Agent
Anthropic Launches Claude Duet, a Proactive AI Agent
1 day ago
What 32,000 Folds Did to the iPhone Duo's Hinge
What 32,000 Folds Did to the iPhone Duo's Hinge
1 day ago
iPhone Duo's Hidden FaceTime Camera Takes 'Trash' Photos
iPhone Duo's Hidden FaceTime Camera Takes 'Trash' Photos
2 days ago
iPhone Duo Has 'Edge Light' Feature That Debuted on Macs Last Year
iPhone Duo Has 'Edge Light' Feature That Debuted on Macs Last Year
2 days ago