Apple Stops Signing iOS 13.3 Following Release of iOS 13.3.1

by

IPSWFollowing the release of iOS 13.3.1 on January 28, Apple has stopped signing iOS 13.3, which means downgrading to that version of iOS is no longer possible.

iOS 13.3 was a major update that included Communication Limits for Screen Time, support for NFC, USB, and Lightning FIDO2-compliant security keys in Safari, and more.

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 13.3.1 is the current publicly available version of iOS, with the update introducing a toggle for the U1 Ultra Wideband chip in the newest iPhones along with various bug fixes and improvements.

Developers and public beta testers can also download iOS 13.4, an upcoming update that includes a new toolbar in the Mail app, iCloud Folder Sharing, new Memoji stickers, and more.

Top Rated Comments

benshive Avatar
12 months ago
Conveniently there’s a jailbreak for A12/A13 devices being released in the next 24 hours that supports up to 13.3.
Score: 5 Votes (Like | Disagree)
thadoggfather Avatar
12 months ago


Conveniently there’s a jailbreak for A12/A13 devices being released in the next 24 hours that supports up to 13.3.

haha yeah * following tweets by pwn20wnd of a 13.3 jailbreak

13.3.1 has been out for a bit now
Score: 3 Votes (Like | Disagree)
MattMJB0188 Avatar
12 months ago
Proudly still running 12.4.1 on my iPhone 8.
Score: 3 Votes (Like | Disagree)
supergt Avatar
12 months ago


Proudly still running 12.4.1 on my iPhone 8.

I’ll do you .1 better. Running 12.4 on my Xs.
Score: 2 Votes (Like | Disagree)
thadoggfather Avatar
12 months ago
I’m actually pretty happy with 13.3 so far ! My first foray into iOS 13 across a few devices
Score: 1 Votes (Like | Disagree)
rforno Avatar
12 months ago


Any minute now Apple will activate the daily nag servers to notify all iOS users to install iOS 13 for us non-conformists. It's been quiet for a few weeks.

No kidding. Talk about living inside the nanny state....as a power user and someone who does NOT YET want to update my IP8 (and knows full well the 'consequences' for not being currently patched) I'm so tired of Cupertino telling me what I should be doing.
Score: 1 Votes (Like | Disagree)

Top Stories

lg wing

LG Considering Exit From Smartphone Business, Halts LCD Production for iPhone

Wednesday January 20, 2021 5:38 am PST by
LG is considering exiting the smartphone business entirely amid declining shipments and accrued losses of $4.5 billion over the past five years (via The Korea Herald). LG CEO Kwon Bong-Seok cautioned staff earlier today that the company is re-evaluating its presence in the smartphone industry: Since the competition in the global market for mobile devices is getting fiercer, it is about...
google maps detailed street level e1611052089473

Google Maps Gains Enhanced Street-Level Detail in Four Major Cities

Tuesday January 19, 2021 2:34 am PST by
Google Maps has quietly been updated to include significantly more detailed street-level information in a handful of key cities around the world. Upon zooming in, Google's maps for Central London, Tokyo, San Francisco, and New York now benefit from shapes and widths that match the scale of roads more accurately. Meanwhile, enhanced graphical representations of sidewalks, crosswalks,...
2019 mac pro side and front

Tim Cook Gifted Donald Trump 'First' 2019 Mac Pro

Wednesday January 20, 2021 5:45 pm PST by
Apple CEO Tim Cook gifted former United States President Donald Trump with the first 2019 Mac Pro that came off of the assembly line in Austin, Texas, according to a financial disclosure report that was released today (via The Verge). "Mac Pro Computer, the first created at the Flex Factory in Austin, Texas," reads the entry, which values the machine at $5,999, the base price for a Mac Pro....
airpods max sim ejector

AirPods Max Headband Removable With Just a SIM Ejector Tool, Hinting at Interchangeable Headbands

Tuesday January 19, 2021 8:25 am PST by
It is possible to remove the headband of AirPods Max with just a standard SIM card ejector tool, hinting at the possibility of interchanging headbands to achieve a different colorway. Image via Prelook In December, MacRumors revealed the large variety of AirPods Max ear cushion color combinations when it became clear that they were magnetically attatched and available for sale separately....
iphone 5s black slate

Images of Unreleased iPhone 5s in Black and Slate Shared Online

Sunday January 17, 2021 9:47 am PST by
Twitter user @DongleBookPro has today shared images of a prototype iPhone 5s in an unreleased Black and Slate color. The iPhone 5s was launched in September 2013. The device featured Touch ID, a 64-bit processor, and a True Tone LED flash for the first time. Other new features included a five-element lens with an f/2.2 aperture, a 15 percent larger camera sensor, Burst Mode, and Slo-Mo...
iphone 12 vs iphone 12 mini

Apple Shifting Some Production From iPhone 12 mini to iPhone 12 Pro to Meet Demand

Wednesday January 20, 2021 8:12 am PST by
Apple has reportedly cut production of the iPhone 12 mini by two million units to create more manufacturing capacity for the iPhone 12 Pro, according to a new Morgan Stanley investment note seen by PED30. Apple is believed to have made the switch for the first quarter of 2021 in an effort to combat continuing lead times for the more popular iPhone 12 Pro. iPhone 12 Pro lead times remain ...
Apple VR Feature

Bloomberg: Apple's First AR/VR Headset 'Pricey, Niche Precursor' to More Ambitious AR Glasses and Could Launch Next Year

Thursday January 21, 2021 3:27 am PST by
Apple's first virtual reality headset will be a "pricey, niche precursor" to a more ambitious augmented reality product, according to a new report from Bloomberg's Mark Gurman. As a mostly virtual reality device, it will display an all-encompassing 3-D digital environment for gaming, watching video and communicating. AR functionality, the ability to overlay images and information over a view...
shot on iphone 12 apple

Apple Highlights Photos Shot by iPhone 12 Users: Portraits, Cityscapes, and More

Tuesday January 19, 2021 6:05 am PST by
Apple today shared a gallery of photos shot by customers using the iPhone 12 mini, iPhone 12, iPhone 12 Pro, and iPhone 12 Pro Max, with scenes including cityscapes, landscapes, portraits of people, and more at day and night. Shot on iPhone 12 Pro Max by "NKCHU" in China (top) and shot on iPhone 12 Pro Max by Rohit Vohra in India (bottom) iPhone 12 mini and iPhone 12 models have a dual camera ...
Apple and Hyundai feature

Apple Car Production Again Linked to Kia Motor's US Plant in Georgia

Tuesday January 19, 2021 4:19 am PST by
Hyundai intends to transition the company's Apple Car involvement to its Kia brand as part of an internal arrangement that could see production move to the U.S., according to a new report today. On Sunday, Korea IT News reported that Apple and Hyundai are seeking a partnership agreement for the upcoming Apple Car by March, and that the electric vehicles could be made at a Georgia factory...
iPhone 13 Notch Feature

iPhone 13 Rumored to Feature Smaller Notch, Pro Model Cameras to Use Larger Image Sensor

Thursday January 21, 2021 1:38 am PST by
Apple's iPhone 13 series will feature a redesigned Face ID system that will allow for a smaller notch at the top of the screen, according to a new report today. The rumor comes via hit-and-miss Taiwanese industry publication DigiTimes, whose supply chain sources also claim that the ultra wide-angle lens in Apple's next-generation iPhones is due for an upgrade. The next-generation iPhones'...