Apple Stops Signing iOS 10.3.1 - MacRumors
Skip to Content

Apple Stops Signing iOS 10.3.1

by

IPSWFollowing the release of iOS 10.3.2 on May 15, Apple has stopped signing iOS 10.3.1, the previous version of iOS that was available to consumers.

Customers who have upgraded to iOS 10.3.2 will no longer be able to downgrade their devices to iOS 10.3.1.

Apple routinely stops signing older versions of software updates after new releases come out in order to encourage customers to keep their operating systems up to date.

iOS 10.3.2 is now the only version of iOS 10 that can be installed on iOS devices by the general public, but developers and public beta testers can download iOS 10.3.3, a future update that is being beta tested and could see a release in the near future.

Top Rated Comments

joshwenke Avatar
121 months ago
I know that Apple gets criticism for not supporting older versions of its software, but having the majority of the iDevices on the same version is great when you're a developer.
Score: 8 Votes (Like | Disagree)
121 months ago
It is also great for the merchant when everyone buys nothing but the same things.
I don't want to call the developer lazy if they don't want to code for different versions of devices, but I am running out of vocabularies.
It is simply a proven fact that older devices runs slow with newer OS, so the consumer has every right to keep their device running an OS that is optimized for that.
I dunno if u r a dev.... otherwise calling developers lazy only shows how entitled people are nowadays....

The manpower to support a number of ver of fragmentation for a moderate sized app, which often goes for 99 cents or something, can easily be hundreds of thousands of engineering dollars. Not all developers is their own Facebook....

If you don't want the latest features, security patches and app compatibility, you probably ain't the ones that will compensate developers fairly for their work either. As a developer, I can totally do without these audiences and not develop for them. Not running a charity here
Score: 5 Votes (Like | Disagree)
redheeler Avatar
121 months ago
What about the iPhone 5C? Wasn't 10.3.1 the last iOS?
32-bit devices are supported until iOS 11.
I really can stand consumers who refuse to upgrade. Older versions have known exploits. You put your own data and those around you at risk when you intentionally run outdated versions. Sure each update may have some issues, but these days security needs to trump stability.
I have skipped iOS X on both my devices - iPad Air 2 on 8.4.1, iPhone 6s+ on 9.3.3. So, it's nice to know you can't stand me. ;)

Think I will finally be updating the iPad Air 2 to iOS 11 this fall, the new multitasking features are too good to pass up.
Score: 3 Votes (Like | Disagree)
121 months ago
I really can stand consumers who refuse to upgrade. Older versions have known exploits. You put your own data and those around you at risk when you intentionally run outdated versions. Sure each update may have some issues, but these days security needs to trump stability.
Score: 3 Votes (Like | Disagree)
macfacts Avatar
121 months ago
I dunno if u r a dev.... otherwise calling developers lazy only shows how entitled people are nowadays....

The manpower to support a number of ver of fragmentation for a moderate sized app, which often goes for 99 cents or something, can easily be hundreds of thousands of engineering dollars. Not all developers is their own Facebook....

If you don't want the latest features, security patches and app compatibility, you probably ain't the ones that will compensate developers fairly for their work either. As a developer, I can totally do without these audiences and not develop for them. Not running a charity here
Fragmentation doesn't mean more work. It means a dev has to make his app work with the lowest common denominator if they want to support the widest amount of users. It means the dev won't be able to use the newer APIs, it doesn't mean more work.
Score: 2 Votes (Like | Disagree)
Audigy Avatar
121 months ago
iOS 10.3.1 was a great release. I installed it on my iPad Air and runs flawlessly. I don't plan on updating any more, because iOS 11 surely will lag on 1GB RAM devices. And I don't like the new Control Centre xD(...)
I too consider 10.3.1 one of the best releases of iOS 10. I tried 10.3.2 two times with DFU(and had considerable drains out of the box both times) and all the betas of 10.3.3(which did not solved the drain issues), only 10.3.1 showed no battery issues whatsoever. It returned my 5S to its former glory.

(...)On the other hand, I've read iOS 10.3.2 has battery issues, so I'm waiting to 10.3.3 to upgrade my iPhone SE, wich currently is on 10.2. Probably, I won't update it anymore too, I see iOS 11 too cluttered on this 4" screen. And man, my SE is Sooo fast now....
You should update to +10.3 since your SE's NAND will benefit from APFS. It improves several aspects of data management which augments performance, while improving longevity since reduces write operations.
Score: 2 Votes (Like | Disagree)

Popular Stories

Prime Big Deal Days 25 Red and Green

Amazon Launches Prime Day Discounts on AirPods, iPad, MacBook Air, and More

Sunday October 4, 2026 9:15 am PDT by
Earlier this week, we began tracking early Prime Day deals on Apple-related accessories, and now Amazon has introduced major early deals on Apple products as well. This includes AirPods, iPads, MacBooks, and more, all available at some of the lowest prices of the year so far. Note: MacRumors is an affiliate partner with Amazon. When you click a link and make a purchase, we may receive a small...
Apple Event Logo

Apple Event Reportedly Planned for October 13

Sunday October 4, 2026 5:07 pm PDT by
Last week, Bloomberg's Mark Gurman reported that Apple plans to unveil an all-new smart home hub, a new HomePod mini, and a new Apple TV 4K on Tuesday, October 13. In his Power On newsletter today, Gurman specified that "Apple is planning to hold an event" that...
iPhone 18 Pro Max Glacier Camera

Apple Says iPhone 18 Pro Max Users With AT&T Cellular Issue Need to Have Device Replaced

Friday October 2, 2026 8:21 pm PDT by
Apple today confirmed that a "small number" of iPhone 18 Pro Max users on the AT&T network have experienced an issue that causes the device to lose cellular service, thereby preventing phone calls, text messages, and data from working. Thousands of users complained about the issue across the Apple Support Community and other platforms. Apple said it released iOS 27.0.1 earlier this week and...
Latest Stories
HomePod Mini Waits Reach Eight Weeks Ahead of Rumored Refresh
HomePod Mini Waits Reach Eight Weeks Ahead of Rumored Refresh
5 minutes ago
Apple Music Is Getting a New Logo
Apple Music Is Getting a New Logo
30 minutes ago
Apple Quietly Boosts Email Feature for iCloud+ Subscribers
Apple Quietly Boosts Email Feature for iCloud+ Subscribers
1 hour ago
iOS 27.2 May Let You Hide Specific Suggested Actions in Messages
iOS 27.2 May Let You Hide Specific Suggested Actions in Messages
2 hours ago
Sources: Apple Planning Two Sets of Product Launches in October
Sources: Apple Planning Two Sets of Product Launches in October
9 hours ago
Apple Announces iPhone Duo Apps Can Now Be Submitted to App Store
Apple Announces iPhone Duo Apps Can Now Be Submitted to App Store
9 hours ago
macOS 27.2 Adds Touch Gestures Ahead of MacBook Ultra
macOS 27.2 Adds Touch Gestures Ahead of MacBook Ultra
14 hours ago
Apple and AT&T Have Yet to Explain Cause of iPhone 18 Pro Max Issue
Apple and AT&T Have Yet to Explain Cause of iPhone 18 Pro Max Issue
14 hours ago
tvOS 27.2 Code Hints at Apple Intelligence for New Apple TV
tvOS 27.2 Code Hints at Apple Intelligence for New Apple TV
15 hours ago
Apple Seeds Third macOS Golden Gate 27.2 Beta to Developers
Apple Seeds Third macOS Golden Gate 27.2 Beta to Developers
17 hours ago
Apple Releases Third watchOS 27.2, tvOS 27.2 and visionOS 27.2 Betas
Apple Releases Third watchOS 27.2, tvOS 27.2 and visionOS 27.2 Betas
17 hours ago
Apple Releases Third iOS 27.2 Beta
Apple Releases Third iOS 27.2 Beta
17 hours ago
Apple Cash Adds ID Check for Reloads, Teases Bank Funding
Apple Cash Adds ID Check for Reloads, Teases Bank Funding
18 hours ago
Apple Configurator App Updated
Apple Configurator App Updated
18 hours ago
Apple One Just Went Up in Price in These Countries
Apple One Just Went Up in Price in These Countries
19 hours ago
iPhone 13 Pro vs. iPhone 18 Pro Buyer's Guide: Is It Worth Upgrading?
iPhone 13 Pro vs. iPhone 18 Pro Buyer's Guide: Is It Worth Upgrading?
20 hours ago
iPad Could Get Significantly Thinner Bezels, Leaker Says
iPad Could Get Significantly Thinner Bezels, Leaker Says
20 hours ago
Prime Day Is Not Just Amazon: See the Biggest Competing Deals From Sony, Best Buy, and Walmart
Prime Day Is Not Just Amazon: See the Biggest Competing Deals From Sony, Best Buy, and Walmart
20 hours ago
Apple's Newest Macs Just Got Their Biggest Price Cuts Yet on Amazon
Apple's Newest Macs Just Got Their Biggest Price Cuts Yet on Amazon
22 hours ago
Apple Watch Prime Day Deals Arrive With New All-Time Low Prices for Series 12 and Ultra 4
Apple Watch Prime Day Deals Arrive With New All-Time Low Prices for Series 12 and Ultra 4
23 hours ago
Apple Releases MagSafe 3 Charging Cable Firmware Update
Apple Releases MagSafe 3 Charging Cable Firmware Update
23 hours ago
AirPods Max 2 Drop to $429 in All Colors for Prime Day
AirPods Max 2 Drop to $429 in All Colors for Prime Day
23 hours ago
Apple Quietly Triples iCloud Mail Alias Limit to Nine
Apple Quietly Triples iCloud Mail Alias Limit to Nine
23 hours ago
Mac Users Reclaim 12GB+ of Storage With Apple Intelligence Removal Tool
Mac Users Reclaim 12GB+ of Storage With Apple Intelligence Removal Tool
21 hours ago
iPhone Duo Makes Focus Modes Easier to Toggle From the Lock Screen
iPhone Duo Makes Focus Modes Easier to Toggle From the Lock Screen
1 day ago
EU iPhone and iPad Users Could Still Face Months-Long Wait for Siri AI
EU iPhone and iPad Users Could Still Face Months-Long Wait for Siri AI
1 day ago
Today Marks the 15th Anniversary of Steve Jobs' Death
Today Marks the 15th Anniversary of Steve Jobs' Death
1 day ago
iPhone 18 Pro's Triple Live Activity Support Comes With a Catch
iPhone 18 Pro's Triple Live Activity Support Comes With a Catch
1 day ago
Apple's New CEO John Ternus is Making Product Design a 'Major Priority'
Apple's New CEO John Ternus is Making Product Design a 'Major Priority'
1 day ago
Apple Hiring 'iCup' Specialist
Apple Hiring 'iCup' Specialist
1 day ago