Apple Says iOS 10.2.1 Update Has Significantly Reduced Unexpected iPhone 6 and 6s Shutdowns [Updated]

For the last several months, iPhone 6, 6s, 6 Plus, and 6s Plus users have been dealing with a problem that causes their devices to unexpectedly shut down, an issue that Apple now says it has successfully addressed in the latest iOS 10.2.1 update, released to the public on January 23.

In a statement provided to TechCrunch, Apple says that the iOS 10.2.1 update has resulted in an 80 percent reduction of unexpected shutdowns on the iPhone 6s and a 70 percent reduction of unexpected shutdowns on the iPhone 6.

iphone 6s colors

With iOS 10.2.1, Apple made improvements to reduce occurrences of unexpected shutdowns that a small number of users were experiencing with their iPhone. iOS 10.2.1 already has over 50% of active iOS devices upgraded and the diagnostic data we've received from upgraders shows that for this small percentage of users experiencing the issue, we're seeing a more than 80% reduction in iPhone 6s and over 70% reduction on iPhone 6 of devices unexpectedly shutting down.

We also added the ability for the phone to restart without needing to connect to power, if a user still encounters an unexpected shutdown. It is important to note that these unexpected shutdowns are not a safety issue, but we understand it can be an inconvenience and wanted to fix the issue as quickly as possible. If a customer has any issues with their device they can contact AppleCare.

According to Apple, the shutdown issue that is solved by the iOS 10.2.1 update is separate from the problem that caused it to recall a select number of iPhone 6s devices. In that case, Apple said some batteries had been overexposed to "controlled ambient air" during the manufacturing process, resulting in the need for a physical battery replacement.

That there are multiple issues causing iPhone shutdowns explains why many iPhone 6 users also complained of problems after the iPhone 6s recall, and why the iPhone 6s issue seemed more widespread than Apple suggested in the recall program. There were even rumors that Apple was planning an iPhone 6 battery exchange program, something Apple quickly refuted.

The shutdowns solved by iOS 10.2.1 are reportedly caused by uneven power delivery from older batteries, which can trigger an emergency shutdown on an iPhone. Apple has tweaked its power management system to reduce shutdowns, but some users may occasionally still have problems, so Apple has also created a way to auto-restart without needing to connect to power. The auto-restart feature is available on the iPhone 6 and 6s in iOS 10.2.1 and will be added to the iPhone 6 Plus and 6s Plus in iOS 10.3.

A new battery info screen will also be added to iOS 10.2.1 in the next few days, letting customers who need to replace their battery know that it's not functioning as expected. The warning, which will be in the Battery section of the Settings app, will only be displayed to customers who need new batteries.

When iOS 10.2.1 was released, Apple did not include a mention of a fix for the iPhone 6 and 6s in its release notes, giving it time to quietly collect data on the shutdown issue before making an official announcement. Customers who are experiencing shutdowns on their iPhone 6 or 6s devices should upgrade to iOS 10.2.1 if they have not done so already.

Update: Apple has posted a support document outlining the new battery notice that's available in the Settings app. It will only show up if a battery needs servicing.

Top Rated Comments

SeattleMoose Avatar
54 months ago
Sadly, you can expect more of these type of bugs as most of the test team was drafted to the EMOJI DESIGN TEAM.
Score: 9 Votes (Like | Disagree)
Naraxus Avatar
54 months ago
What a difference five years makes in the life of a company. I remember a time when stuff like this happening was an exception, not the norm at Apple but I guess whatever makes Timmy the most money at the expense of everything else.
Score: 7 Votes (Like | Disagree)
gigapocket1 Avatar
54 months ago
Now, when will they address the random restarts that happen on the iPhone 7 Plus almost on a daily basis? That's also annoying and inconvenient as hell.
Hmmmm. Zero issues over here
Score: 6 Votes (Like | Disagree)
BoltmanLives Avatar
54 months ago
Actually they did address the touch disease: https://www.apple.com/support/iphone6plus-multitouch/
Granted, it's a repair program and not a recall, which is kind of sketchy.
Kind of sketchy? Really that's all?

Ok let me get this straight, Apl soldiering without protection is scause of the IC chips coming loose inside as described in great detail by iFixit...a design flaw (because they eliminated the shield covering to save on cost a few cents) . they after months of refusing to admit they had a problem, finally after uproar they come up with pay $149 to have it fixed..and replace it with another flawed phone?

That's far beyond sketchy , its consumer abuse.
All 6/6+ have this design flaw.

They should have recalled all of the iPhone 6/6+ which are ticking disasters and replaced them with that original 90,000,000 order they had to scale down with the "now fixed design" and done the right thing for consumers...but no its another cash grab of the consumer (not at fault) paying $149 to have it fixed,




So Apl finally makes a bigger phone and reduces structural redundancy? Gee what great decisions Apl.


Ridiculous. More ridiculous people still trust them.
Score: 4 Votes (Like | Disagree)
WannaGoMac Avatar
54 months ago
I want to go back to iOS 10.0 or 10.0x or something. My iphone 6 plus has become so laggy in last couple of months.
Score: 4 Votes (Like | Disagree)
mcdspncr Avatar
54 months ago
um, the only thing that stopped my 6s+ from crashing @60% charge was paying Apple to replace the battery...
Score: 4 Votes (Like | Disagree)

Top Stories

Top Stories 57 Feature

Top Stories: Apple Event Next Tuesday, Mini-LED iPad Pro, iPhone Rumors

Saturday April 17, 2021 6:00 am PDT by
It feels like we've been waiting forever for new Apple products, but the wait is almost over as Apple has announced a media event for next Tuesday, so make sure to tune into MacRumors for full coverage of everything Apple announces. While that was the big news this week, we also got some new details on Apple's iPhone plans for 2022 and 2023 courtesy of analyst Ming-Chi Kuo, and we also saw...
flat imac 3d 3 teal

Reliable Leaker Hints Redesigned Colorful iMac to Debut at 'Spring Loaded' Event

Saturday April 17, 2021 4:43 am PDT by
Reliable leaker known as l0vetodream has hinted that Apple may debut its rumored redesigned and colorful iMac at its "Spring Loaded" event on Tuesday, April 20. In a tweet, the leaker posted an image of Apple's logo used for marketing the upcoming event and an image of the retro rainbow Apple logo alongside the colorful lineup of G3 iMacs. Apple leaker Jon Prosser previously reported that...
duan rui iphone 12 13 notch

New Images Show Smaller iPhone 13 Notch Compared to iPhone 12

Saturday April 17, 2021 11:38 pm PDT by
Leaker known as "DuanRui" has shared more images that could give us our best look yet at Apple's redesigned notch for the iPhone 13. The new pictures follow similar images shared by the leaker last week, but the latest shots include a comparison with the existing iPhone 12 notch. DuanRui posted three images on Twitter that apparently originate from Weibo, although source details remain...
iPad Pro Feature Orange

Wedbush Analysts Say 'Spring Loaded' Event Will Debut New iPads With 'Modest Price Increase,' Along With 'a Few Surprises'

Monday April 19, 2021 6:37 am PDT by
Apple is planning to launch a new entry-level iPad, iPad mini, and iPad Pro at its "Spring Loaded" event tomorrow, along with "a few surprises," according to Wedbush analysts. In a new note to investors, seen by MacRumors, Wedbush analysts Daniel Ives and Strecker Backe explained that the iPad will be the main focus of Apple's "Spring Loaded" event, with new entry-level iPad, iPad mini, and ...
important battery message iphone 11

Some iPhone 11 Users Seeing Increased Battery Health Percentages After iOS 14.5 Recalibration Process

Friday April 16, 2021 6:32 am PDT by
In the sixth beta of iOS 14.5, Apple introduced a recalibration process for the battery health reporting system on the iPhone 11, iPhone 11 Pro, and iPhone 11 Pro Max to address inaccurate battery health estimates for some users. Apple said this process might take a few weeks to be completed, and now that two weeks have passed since the sixth beta of iOS 14.5 was released, some users are...
third gen Apple pencil leaked video

Video of Alleged Third-Generation Apple Pencil Leaks Ahead of Apple Event

Friday April 16, 2021 6:13 am PDT by
A video purporting to be of the third-generation Apple Pencil has today been shared online, showing a glossy finish that mirrors previous leaks. New ✏️ ready to 🚢 #AppleEvent @TommyBo50387266 pic.twitter.com/s4RCDwDi5M— 漢尼斯·拉斯納 🇨🇳 (@ileakeer) April 16, 2021 The brief video from Twitter account @ileakeer, spotted by 9to5Mac, shows an Apple Pencil with a glossy finish much like the...
iPad Pro

New 12.9-Inch iPad Pro Will Be 0.5mm Thicker to Accommodate Mini-LED Display

Monday April 19, 2021 11:30 am PDT by
The upcoming 12.9-inch iPad Pro will be thicker than the previous-generation version, likely due to the inclusion of the mini-LED display. We've heard several rumors about the change in thickness, and now leaked design images have confirmed it. A source that designs accessories for Apple devices sent MacRumors a series of photos that feature exact dimensions for the new iPad Pro models, and...
parler app

Apple Approves Parler to Return to App Store

Monday April 19, 2021 7:51 am PDT by
Following the removal of the app in January, Apple will now allow the social media app Parler to return to the App Store following changes to how the social media network moderates content, CNN reports. On April 14, in a letter to Sen. Mike Lee and Rep. Ken Buck obtained by CNN, Apple said that the app has improved the way it moderates content, and says those changes are "sufficient" for it...
iphone 12 120hz thumbnail feature

LTPO Displays Supporting 120Hz Refresh Rates Again Rumored for iPhone 13 Pro Models

Friday April 16, 2021 10:01 am PDT by
The two higher-end "iPhone 13 Pro" models that are coming in 2021 are expected to use LTPO display technology to enable 120Hz refresh rates, according to display analyst Ross Young. Young reaffirmed the detail in a tweet that said he'd heard rumors about only one model featuring LTPO, which he says is inaccurate. Heard some rumors in the industry and media that there would only be one ...
maxresdefault

Hands-On With Anker's MagSafe-Compatible Battery Pack

Thursday April 15, 2021 9:39 am PDT by
Anker, a company known for its range of accessories designed for Apple products, recently came out with one of the first MagSafe-compatible battery packs, so we thought we'd check it out to see how it compares to a standard battery pack. Subscribe to the MacRumors YouTube channel for more videos. Design wise, Anker's power bank looks like a typical battery pack, but it has magnets built in...