Arizona Attorney General Leading Multi-State Probe on Apple iPhone Throttling

Apple is facing another probe on its iPhone "throttling" practices, this time from Arizona attorney general Mark Brnovich, reports Reuters.

iphone 6s battery
The probe, which may also involve Texas, has been ongoing since October 2018 and is attempting to determine whether Apple's deliberate slowing of older iPhones "violated deceptive trade practice laws."

Last week, reports suggested that Texas was involved in an investigation aiming to determine whether Apple deceived customers, though no other information was available at the time. It's likely that the probe in Arizona is linked to the Texas report, with both states looking into Apple's 2017 ‌iPhone‌ slowdown practices.

As many MacRumors readers know, Apple in iOS 10.2.1 (which was released in early 2017) introduced a performance management system designed to eliminate unexpected shutdowns by throttling the maximum performance of iPhones with chemically aged batteries.

Apple did not disclose how its power management system worked, leading to customer outrage when it was discovered ‌iPhone‌ performance was being downgraded. Apple said that this was to make sure that the ‌iPhone‌ lasted as long as possible, even as the battery failed.

After it was discovered that Apple was limiting ‌iPhone‌ performance, Apple apologized and ultimately launched a battery replacement program that saw the company offering replacement batteries for older devices for $29. Replacing a failing battery successfully resolves the problem that leads to shutdowns, which is why power was limited by Apple in the first place.

In addition to offering low-cost battery replacements for a year, Apple has also agreed to pay up to $500 million to settle a class action lawsuit over the issue.

Apple's performance management system is now disabled by default and it turns on only if an ‌iPhone‌ suffers an unexpected shutdown. Even then, it can be disabled, and Apple also provides much more detailed information on battery health so customers can opt for a replacement when necessary.

Popular Stories

AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 2, AirPods Pro 3, and AirPods 4

Thursday November 13, 2025 11:35 am PST by
Apple today released new firmware designed for the AirPods Pro 3, the AirPods 4, and the prior-generation AirPods Pro 2. The AirPods Pro 3 firmware is 8B25, while the AirPods Pro 2 and AirPods 4 firmware is 8B21, all up from the prior 8A358 firmware released in October. There's no word on what's include in the updated firmware, but the AirPods Pro 2, AirPods 4 with ANC, and AirPods Pro 3...
CarPlay Pinned Messages

iOS 26.2 Adds New CarPlay Setting

Thursday November 13, 2025 6:48 am PST by
iOS 26 extended pinned conversations in the Messages app to CarPlay, for quick access to your most frequent chats. However, some drivers may prefer the classic view with a list of individual conversations only, and Apple now lets users choose. Apple released the second beta of iOS 26.2 this week, and it introduces a new CarPlay setting for turning off pinned conversations in the Messages...
Tesla Charging

Tesla Working to Add Apple CarPlay Support to Vehicles

Thursday November 13, 2025 8:31 am PST by
Tesla is working to add support for Apple CarPlay in its vehicles, Bloomberg's Mark Gurman reports. Tesla vehicles rely on its own infotainment software system, which integrates vehicle functions, navigation, music, web browsing, and more. The automaker has been an outlier in foregoing support for Apple CarPlay, which has otherwise become an industry standard feature, allowing users to...
tvOS 26 Profiles

tvOS 26.2 Adds a Useful New Feature to Your Apple TV

Friday November 14, 2025 10:02 am PST by
Starting with the upcoming tvOS 26.2 update, currently in beta, additional profiles created on the Apple TV no longer require their own Apple Account. In the Settings app on the Apple TV, under Profiles and Accounts, anyone can create a new profile by simply entering a name and indicating whether the profile is for a kid. The profile will be associated with the primary user's Apple Account,...
iPhone Pocket Short

iPhone Pocket Now Available to Order, But Already Selling Out

Friday November 14, 2025 6:20 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. iPhone Pocket is available to order on Apple's online store starting today, in the United States, France, China, Italy, Japan, Singapore, South Korea, and the United Kingdom. However, it is already completely sold out in the United...
homepod mini thumb feature

New HomePod Mini, Apple TV, and AirTag Were Expected This Year — Where Are They?

Wednesday November 12, 2025 11:42 am PST by
While it was rumored that Apple planned to release new versions of the HomePod mini, Apple TV, and AirTag this year, it is no longer clear if that will still happen. Back in January, Bloomberg's Mark Gurman said Apple planned to release new HomePod mini and Apple TV models "toward the end of the year," while he at one point expected a new AirTag to launch "around the middle of 2025." Yet,...
iOS 26

iOS 26.2 Available Next Month With These 8 New Features

Tuesday November 11, 2025 9:48 am PST by
Apple released the first iOS 26.2 beta last week. 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 in 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....
m1 chip slide

Five Years of Apple Silicon: M1 to M5 Performance Comparison

Monday November 10, 2025 1:08 pm PST by
Today marks the fifth anniversary of the Apple silicon chip that replaced Intel chips in Apple's Mac lineup. The first Apple silicon chip, the M1, was unveiled on November 10, 2020. The M1 debuted in the MacBook Air, Mac mini, and 13-inch MacBook Pro. The M1 chip was impressive when it launched, featuring the "world's fastest CPU core" and industry-leading performance per watt, and it's only ...
iOS 26

Everything New in iOS 26.2 Beta 2

Wednesday November 12, 2025 3:29 pm PST by
Apple today provided developers with the second beta of iOS 26.2, which adds a few new features worth knowing about. Measure App Apple's Measure app now features a Liquid Glass design for the level, with two Liquid Glass bubbles instead of white circles. Games App There's now an option to sort games in the Games app Library by size, in addition to Name and Recent. CarPlay The...
walmart new ornametns

Walmart Black Friday Deals Begin Today With Low Prices on Headphones, TVs, and More

Friday November 14, 2025 7:55 am PST by
Walmart's Black Friday sale has officially kicked off today, with an online shopping event that's also seeing some matching deals in retail locations. There are quite a few major discounts in this sale, including savings on headphones, TVs, and more. Note: MacRumors is an affiliate partner with Walmart. When you click a link and make a purchase, we may receive a small payment, which helps us...

Top Rated Comments

macbookfan Avatar
69 months ago
Consumer: My old phone shuts off randomly when I’m using it.
Apple: here have a free software update that keeps your phone on.
Consumer: Apple slowed down my phone!

No matter what someone is always not happy.
Score: 16 Votes (Like | Disagree)
2010mini Avatar
69 months ago

Do you accept apples apology?
for fixing a problem of iPhones shutting down during use? The only thing they did wrong was not shout it from the hills. All this info was in the description of the iOS update.
Score: 13 Votes (Like | Disagree)
BigMcGuire Avatar
69 months ago
This just wasn't aged batteries. I tell my experience every time these threads come up:


My wife and I have the same phones, we buy them at the same time - the same phones, and use them for a few years then upgrade.

Our 6s+ phones started out identical... and less than 3 months into ownership, my wife's 6s+ would last significantly less than my 6s+ with near identical usage (walking in the park doing Ingress). It was about 4-5 months in that her phone started shutting off during high usage events (such as Ingress, Facebook, etc).

6 months into ownership her phone would restart handfuls of times on a mile walk in the park. All the while her battery life was 3x worse. CoconutBattery would show capacity at 40%, 60%, 80%, randomly depending on when I'd measure.

We took it to the Apple Store only for her phone to repeatedly fail the diagnostic test but the tech, frustrated, threw up his hands and said: "Sorry, I can't help you, her battery is green."

So we paid, out of pocket, for the $80 battery replacement which solved all her problems.

Granted, Apple refunded $55 of that... but ... there were CLEARLY a batch of bad batteries that went out and Apple tried to mitigate it by lowering CPU voltage to help reduce rebooting.
Score: 12 Votes (Like | Disagree)
lkalliance Avatar
69 months ago

for fixing a problem of iPhones shutting down during use? The only thing they did wrong was not shout it from the hills. All this info was in the description of the iOS update.
Anecdotally, that's not the only thing it did wrong. SUPPOSEDLY many people would go into an Apple Store complaining of a slowing phone and were directed by Apple staff that the way to fix that was to get a new phone. Anecdotal evidence is problematic. Is that what was really recommended? Did the sales staff perhaps mention a battery replacement but the buyer shrugged it off? We don't know. Just that anecdotally, Apple not only didn't mention the feature but used its invisibility to turn people to the more expensive(/profitable) fix.

For what it's worth.


ADDED: It's also quite possible that the Apple Store clerks were also not aware of the feature (it was hidden, after all), and so directing users to consider a new phone would be the appropriate thing to suggest...which doesn't remove the issue at all, just kicks it further up the chain of command.
Score: 9 Votes (Like | Disagree)
kiranmk2 Avatar
69 months ago
Apple definitely hid this - if it was accurately described in the update notes then tech sites would have featured it at the time and listed a battery replacement as a way to maintain speed. The fact that the tech sites were as surprised as anyone when the story broke tells a big story.

I don't think Apple did anything wrong by doing change, but they did do wrong by not telling people this was how iOS worked - as mentioned above, lots of people probably upgraded to new phones completely unaware that a $79 option would make their device speedy again.
Score: 9 Votes (Like | Disagree)
luvbug Avatar
69 months ago
More politicians looking for publicity, nothing more. That's all that seems to matter anymore.
Score: 8 Votes (Like | Disagree)