Apple Stops Signing iOS 15.3 Following iOS 15.3.1 Release, Downgrading No Longer Possible

Following the release of iOS 15.3.1 on February 10, Apple has stopped signing iOS 15.3, the previously available version of iOS that came out in late January. Because iOS 15.3 is no longer being signed, it is not possible to downgrade to that version of iOS if you've updated to iOS 15.3.1.

ios 15
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 15.3 was a bug fix update that addressed a significant Safari bug that could leak browsing activity, while iOS 15.3.1 was another bug fix update further addressing WebKit vulnerabilities.

Popular Stories

iphone 16 pro ghost hand

5 Reasons to Skip This Year's iPhone 17 Pro

Thursday July 10, 2025 4:54 am PDT by
Apple will launch its new iPhone 17 series in two months, and the iPhone 17 Pro models are expected to get a new design for the rear casing and the camera area. But more significant changes to the lineup are not expected until next year, when the iPhone 18 models arrive. If you're thinking of trading in your iPhone for this year's latest, consider the following features rumored to be coming...
apple wallet drivers license feature iPhone 15 pro

Apple Says iPhone Driver's Licenses Will Expand to These 8 U.S. States

Tuesday July 8, 2025 11:26 am PDT by
In select U.S. states, residents can add their driver's license or state ID to the Wallet app on the iPhone and Apple Watch, providing a convenient and contactless way to display proof of identity or age at select airports and businesses, and in select apps. Unfortunately, this feature continues to roll out very slowly since it was announced in 2021, with only nine U.S. states, Puerto Rico,...
macbook pro blue green

M5 MacBook Pro No Longer Coming in 2025

Thursday July 10, 2025 12:38 pm PDT by
Apple does not plan to refresh any Macs with updated M5 chips in 2025, according to Bloomberg's Mark Gurman. Updated MacBook Air and MacBook Pro models are now planned for the first half of 2026. Gurman previously said that Apple would debut the M5 MacBook Pro models in late 2025, but his newest report suggests that Apple is "considering" pushing them back to 2026. Apple is now said to be...
iPhone 17 Pro in Hand Feature Lowgo

Leaker Reveals Amount of RAM in iPhone 17 Through iPhone 17 Pro Max

Wednesday July 9, 2025 8:08 am PDT by
Three out of four iPhone 17 models will feature more RAM than the equivalent iPhone 16 models, according to a new leak that aligns with previous rumors. The all-new iPhone 17 Air, the iPhone 17 Pro, and the iPhone 17 Pro Max will each be equipped with 12GB of RAM, according to Fixed Focus Digital, an account with more than two million followers on Chinese social media platform Weibo. The...
iPhone 17 Pro in Hand Feature Lowgo

iPhone 17 Pro to Reverse iPhone X Design Decision

Monday July 7, 2025 9:46 am PDT by
Since the iPhone X in 2017, all of Apple's highest-end iPhone models have featured either stainless steel or titanium frames, but it has now been rumored that this design decision will be coming to an end with the iPhone 17 Pro models later this year. In a post on Chinese social media platform Weibo today, the account Instant Digital said that the iPhone 17 Pro models will have an aluminum...
Foldable iPhone 2023 Feature 1

Foldable iPhone Display Production Begins Ahead of Launch Next Year

Wednesday July 9, 2025 10:59 pm PDT by
Production of foldable OLED displays for Apple's first foldable iPhone have begun ahead of its expected launch next year, Korea's ETNews reports. The first foldable iPhone's displays are being produced by Samsung Display, who are establishing a production line dedicated to the upcoming Apple device its A3 factory in Asan, Chungcheongnam-do. The production line will make displays exclusively...
apple tv 4k new orange

New Apple TV Expected Later This Year With These New Features

Saturday July 12, 2025 3:09 pm PDT by
A new Apple TV is expected to be released later this year, and a handful of new features and changes have been rumored for the device. Below, we recap what to expect from the next Apple TV, according to rumors. Rumors Faster Wi-Fi Support The next Apple TV will be equipped with Apple's own combined Wi-Fi and Bluetooth chip, according to Bloomberg's Mark Gurman. He said the chip supports ...
iphone 16 pro pro max

iPhone 17 Pro Models With BOE Displays Will Be Sold in China Only

Thursday July 10, 2025 11:59 pm PDT by
iPhone 17 Pro and iPhone 17 Pro Max models with displays made by BOE will be sold exclusively in China, according to a new report. Last week, it emerged that Chinese display manufacturer BOE was aggressively ramping up its OLED production capacity for future iPhone models as part of a plan to recapture a major role in Apple's supply chain. Now, tech news aggregator Jukan Choi reports...

Top Rated Comments

Thebrochure Avatar
44 months ago
This is one of those things that lawmakers should step up to the plate and end. You should always be allowed to go back to whatever iOS you want, as long as it's not older than the original version that came with your phone.
Score: 8 Votes (Like | Disagree)
JosephAW Avatar
44 months ago
Apple should allow the ability to reinstall the original iOS version for each device and then the user can upgrade to each successive iOS major releases just like they allowed my iPhone 4S to reinstall iOS 6 and then iOS 8 and then iOS 9. I stopped at iOS 8.
Score: 7 Votes (Like | Disagree)
BaltimoreMediaBlog Avatar
44 months ago

This is one of those things that lawmakers should step up to the plate and end. You should always be allowed to go back to whatever iOS you want, as long as it's not older than the original version that came with your phone.
I totally AGREE and the IOS 10 to 11 transition should have resulted in a Class Action lawsuit for deleting nearly a hundred apps from my iPhone 5s without my permission, and Apple shipping it back to me less functional after a battery repair that I paid for too when others got them for free. So for me it was a kick in the balls bigtime!

THIS SHOULD BE ILLEGAL!
Score: 6 Votes (Like | Disagree)
MysticCow Avatar
44 months ago
I despise the whole “no longer signing” garbage. If there’s an issue and you NEEEEEED to downgrade it, it isn’t possible. You’re just plain screwed.
Score: 5 Votes (Like | Disagree)
Octavius8 Avatar
44 months ago
How about first fixing the Bluetooth issue on the cars?. (Disconnecting every few seconds after iOS 15.3).
Apple support suggest “car issue”, of course… 4 iPhone generations, no problem, iOS 15 on my 13Pro, no problem, iOS 15.3 dissaster!. Will Apple Pay me a new car now that they broke basic Bluetooth calling with a car????
Score: 4 Votes (Like | Disagree)
NMBob Avatar
44 months ago

I despise the whole “no longer signing” garbage. If there’s an issue and you NEEEEEED to downgrade it, it isn’t possible. You’re just plain screwed.
You would think if congress wanted to do something useful they would look into something like th....never mind.
Score: 4 Votes (Like | Disagree)