Arizona Attorney General Leading Multi-State Probe on Apple iPhone Throttling - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

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

apple pro tell logo

Apple Launching Five New Products Today

Thursday November 5, 2026 12:59 am PST by
Apple is launching five new products on Friday, November 6, following pre-orders that opened last week, including its first touchscreen MacBook Pro models. The following new products will be available from today: iPad mini with OLED display and A20 Pro chip iMac with M6 chip 14-inch MacBook Pro with M6 chip 14-inch MacBook Pro with OLED touchscreen 16-inch MacBook Pro with OLED...
silver iphone 18 pro

Apple Rumored to Drop the iPhone's Action Button Next Year

Friday November 6, 2026 6:07 am PST by
Apple plans to merge the iPhone's Action button with the Camera Control starting next year, according to the leaker known as "Instant Digital." In a new post on Weibo, the leaker claimed that a single press of the combined button would open the camera, while a long press would trigger the function assigned to the Action button. They explicitly clarified that the dedicated Action button would ...
hero medium 2x feature1

Apple Surveys iPhone Duo Buyers About Crease and Camera

Thursday November 5, 2026 4:22 pm PST by
Apple is sending email surveys to some iPhone Duo buyers to get feedback on display size, crease, under-display camera, and other features. The first question asks why the buyer chose the iPhone Duo now, with answers like "I wanted to try Apple's first foldable," "It was an impulse purchase," and "I expect smartphone prices to increase." Other questions ask about the size of the iPhone...

Top Rated Comments

82 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)
82 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
82 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)
kiranmk2 Avatar
82 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)
lkalliance Avatar
82 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)
82 months ago
I really don’t get the issue here. If you have a car and the engine has a problem the car can go into limp mode with reduced performance to protect the engine. No one is mad about this?!?
The exact same thing happens in phones and some people are going mad about it.
Score: 8 Votes (Like | Disagree)
Latest Stories
Early Apple Black Friday Deals on Apple Watch, MacBook Air, and More
Early Apple Black Friday Deals on Apple Watch, MacBook Air, and More
5 hours ago
Top Stories: Apple Product Launches, iOS 27.3 Beta, and More
Top Stories: Apple Product Launches, iOS 27.3 Beta, and More
5 hours ago
More Fun iPhone Duo Apps: 30 New Picks to Try
More Fun iPhone Duo Apps: 30 New Picks to Try
20 hours ago
Hands-On With Apple's New OLED Touchscreen MacBook Pro
Hands-On With Apple's New OLED Touchscreen MacBook Pro
21 hours ago
Apple Store With All-New Design Opening Soon in Southern California
Apple Store With All-New Design Opening Soon in Southern California
21 hours ago
Control the Glowing Apple Logo on Your New MacBook Pro
Control the Glowing Apple Logo on Your New MacBook Pro
23 hours ago
Apple Shares New 'Apple Card: Apply and Use in Minutes' Ad
Apple Shares New 'Apple Card: Apply and Use in Minutes' Ad
1 day ago
Apple Says More Than 100,000 Apps Optimized for iPhone Duo, Here's What's Still Missing
Apple Says More Than 100,000 Apps Optimized for iPhone Duo, Here's What's Still Missing
1 day ago
Early Black Friday Deals Kickoff With Steep Discounts on Apple Watch Ultras and More
Early Black Friday Deals Kickoff With Steep Discounts on Apple Watch Ultras and More
1 day ago
The MacRumors Show: iOS 27.3 Looks Like a Huge Update
The MacRumors Show: iOS 27.3 Looks Like a Huge Update
1 day ago
Best Buy's Black Friday Event Begins With Sitewide Savings on Apple, TVs, More
Best Buy's Black Friday Event Begins With Sitewide Savings on Apple, TVs, More
1 day ago
Apple Releasing Yet Another Two New Products Next Week
Apple Releasing Yet Another Two New Products Next Week
1 day ago
MacBook Air Drops to Lowest Price in Months With Amazon's $250 Discount
MacBook Air Drops to Lowest Price in Months With Amazon's $250 Discount
1 day ago
Apple Rumored to Drop the iPhone's Action Button Next Year
Apple Rumored to Drop the iPhone's Action Button Next Year
1 day ago
Apple's Extended Return Policy Now in Effect for 2026 Holiday Season
Apple's Extended Return Policy Now in Effect for 2026 Holiday Season
1 day ago
Apple Music Classical Updated With New Icon and Refreshed Design
Apple Music Classical Updated With New Icon and Refreshed Design
1 day ago
OLED iPad Mini, M6 iMac, and New MacBook Pros Available From Today
OLED iPad Mini, M6 iMac, and New MacBook Pros Available From Today
1 day ago
Apple Surveys iPhone Duo Buyers About Crease and Camera
Apple Surveys iPhone Duo Buyers About Crease and Camera
2 days ago
Apple's First Touchscreen Mac is Now Arriving to Customers
Apple's First Touchscreen Mac is Now Arriving to Customers
2 days ago
Claude Gets Personal Finance Feature With Bank Account Linking
Claude Gets Personal Finance Feature With Bank Account Linking
2 days ago
Apple Arcade Adds Crossy Road Rush and NBA 2K27
Apple Arcade Adds Crossy Road Rush and NBA 2K27
2 days ago
Apple's New HomeView Smart Home Hub: Here's How Much RAM It Has
Apple's New HomeView Smart Home Hub: Here's How Much RAM It Has
2 days ago
iPad Mini vs. iPad Air Buyer's Guide: Now Just $50 Apart
iPad Mini vs. iPad Air Buyer's Guide: Now Just $50 Apart
2 days ago
First iOS 27.3 and macOS Golden Gate 27.3 Public Betas Now Available
First iOS 27.3 and macOS Golden Gate 27.3 Public Betas Now Available
2 days ago
Apple Announces a New Mac Sales Record
Apple Announces a New Mac Sales Record
2 days ago
Paid $200 for Logic Pro? Apple Says You Won't Get This New Feature
Paid $200 for Logic Pro? Apple Says You Won't Get This New Feature
2 days ago
Instagram's Edits Video Editor is Now Available on Mac
Instagram's Edits Video Editor is Now Available on Mac
2 days ago
Prevent Siri and Search From Accessing Specific iPhone Apps
Prevent Siri and Search From Accessing Specific iPhone Apps
2 days ago
Best Early Black Friday Deals on iPhone 18 Pro and iPhone Duo
Best Early Black Friday Deals on iPhone 18 Pro and iPhone Duo
2 days ago
MacBook Pro PROLED XDR Reviews Are In: Is the Touchscreen Worth It?
MacBook Pro PROLED XDR Reviews Are In: Is the Touchscreen Worth It?
2 days ago