Latest iOS 13.3.1 Beta Includes Toggle for Disabling U1 Ultra Wideband Chip

by

The second beta of iOS 13.3.1, released earlier this month, includes a toggle for disabling the Ultra Wideband chip in the device.

Found by Twitter user Brandon Butch (via 9to5Mac), the toggle can be found by opening up the Settings app, selecting Privacy, choosing Location Services, selecting System Services, and then toggling off the "Networking & Wireless" option.

appleu1chiptoggleios1331
Disabling this feature warns that Bluetooth, Wi-Fi, and Ultra Wideband performance will be affected.

Apple added this toggle in the beta after it was discovered that the iPhone 11, 11 Pro, and 11 Pro Max continue to track user location even when location services toggles are disabled.

Apple said that this was expected behavior due to the Ultra Wideband chip and that the ‌iPhone‌ was operating as designed explaining that location data needed to be used because there are international regulatory requirements that mandate the U1 chip be disabled in certain locations.

Ultra wideband technology is an industry standard technology and is subject to international regulatory requirements that require it to be turned off in certain locations. iOS uses Location Services to help determine if ‌iPhone‌ is in these prohibited locations in order to disable ultra wideband and comply with regulations.

The management of ultra wideband compliance and its use of location data is done entirely on the device and Apple is not collecting user location data.

Apple at the time promised to add a toggle to allow customers to disable the U1 chip entirely, and that toggle will be available to everyone after the release of iOS 13.3.1.

Related Forum: iOS 13

Popular Stories

iphone 16 display

iPhone 17's Scratch Resistant Anti-Reflective Display Coating Canceled

Monday April 28, 2025 12:48 pm PDT by
Apple may have canceled the super scratch resistant anti-reflective display coating that it planned to use for the iPhone 17 Pro models, according to a source with reliable information that spoke to MacRumors. Last spring, Weibo leaker Instant Digital suggested Apple was working on a new anti-reflective display layer that was more scratch resistant than the Ceramic Shield. We haven't heard...
Read Full Article • 104 comments
apple watch ultra yellow

What's Next for the Apple Watch Ultra 3 and Apple Watch SE 3

Friday April 25, 2025 2:44 pm PDT by
This week marks the 10th anniversary of the Apple Watch, which launched on April 24, 2015. Yesterday, we recapped features rumored for the Apple Watch Series 11, but since 2015, the Apple Watch has also branched out into the Apple Watch Ultra and the Apple Watch SE, so we thought we'd take a look at what's next for those product lines, too. 2025 Apple Watch Ultra 3 Apple didn't update the...
Read Full Article • 65 comments
iPhone 17 Air Pastel Feature

iPhone 17 Reaches Key Milestone Ahead of Mass Production

Monday April 28, 2025 8:44 am PDT by
Apple has completed Engineering Validation Testing (EVT) for at least one iPhone 17 model, according to a paywalled preview of an upcoming DigiTimes report. iPhone 17 Air mockup based on rumored design The EVT stage involves Apple testing iPhone 17 prototypes to ensure the hardware works as expected. There are still DVT (Design Validation Test) and PVT (Production Validation Test) stages to...
Read Full Article • 27 comments
Beyond iPhone 13 Better Blue

20th Anniversary iPhone Likely to Be Made in China Due to 'Extraordinarily Complex' Design

Monday April 28, 2025 4:29 am PDT by
Apple will likely manufacture its 20th anniversary iPhone models in China, despite broader efforts to shift production to India, according to Bloomberg's Mark Gurman. In 2027, Apple is planning a "major shake-up" for the iPhone lineup to mark two decades since the original model launched. Gurman's previous reporting indicates the company will introduce a foldable iPhone alongside a "bold"...
Read Full Article • 121 comments
iPhone 17 Air Pastel Feature

iPhone 17 Air Launching Later This Year With These 16 New Features

Thursday April 24, 2025 8:24 am PDT by
While the so-called "iPhone 17 Air" is not expected to launch until September, there are already plenty of rumors about the ultra-thin device. Overall, the iPhone 17 Air sounds like a mixed bag. While the device is expected to have an impressively thin and light design, rumors indicate it will have some compromises compared to iPhone 17 Pro models, including only a single rear camera, a...
Read Full Article • 101 comments
iPhone 17 Pro Blue Feature Tighter Crop

iPhone 17 Pro Launching Later This Year With These 13 New Features

Wednesday April 23, 2025 8:31 am PDT by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models as of April 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone ...
Read Full Article
iPhone 17 Pro on Desk Feature

All iPhone 17 Models Again Rumored to Feature 12GB of RAM

Tuesday April 29, 2025 3:36 am PDT by
All upcoming iPhone 17 models will come equipped with 12GB of RAM to support Apple Intelligence, according to the Weibo-based leaker Digital Chat Station. The claim from the Chinese leaker, who has sources within Apple's supply chain, comes a few days after industry analyst Ming-Chi Kuo said that the iPhone 17 Air, iPhone 17 Pro, and iPhone 17 Pro Max will all be equipped with 12GB of RAM. ...
Read Full Article • 73 comments

Top Rated Comments

69Mustang Avatar
69Mustang
69 months ago

Yeah except when Apple Services is using location services it stays on device. Just saying, there's a reason I'm not as anxious to restrict location access for all of iOS as I am for third-party apps and services.
Whether or not the location data stays on the device or gets sent to Apple is not the point of contention. If a user disables location services, they have every expectation to believe that disable location services means exactly that, disable location services. It clearly didn't and that was the point of contention. Caveats, if there are any, should be clearly explained. This issue itself is trivial imo, but the "discovery" of the UWB exception and the subsequent explanation and toggle solution makes it look worse than it is.

The ounce of prevention (acknowledgement of the UWB exception beforehand ) would have been better than the pound of cure (explanation of why it does what it does afterwards and toggle solution).
Score: 17 Votes (Like | Disagree)
SDJim Avatar
SDJim
69 months ago
Yeah except when Apple Services is using location services it stays on device. Just saying, there's a reason I'm not as anxious to restrict location access for all of iOS as I am for third-party apps and services.
Score: 10 Votes (Like | Disagree)
Jyby Avatar
Jyby
69 months ago
Science Rules!
Score: 10 Votes (Like | Disagree)
Duane Martin Avatar
Duane Martin
69 months ago

I don’t want to use this chip and I appreciate that they are letting us turn it off. I wish the neural engine were also a chip that I could turn off. Every time I see that it’s been snooping around in my pictures again, I want to open my phone, find the little beast, and gouge its eyes out with a sharp object. I think it’s strange that Apple forces face recognition and other artificial intelligence intrusions upon us. It’s an invasion on my privacy, even if it’s only phycological.
First, use the default spell check. Second, if you don’t want a smartphone, don’t buy a smartphone. All of this is done on your phone, it doesn’t leave your phone, so how is it possibly an invasion of privacy? If you have psychological issues with this, get help. How could Apple, or anyone, possibly anticipate every possible psychological issue?

And this is such a non-issue. The claim that this particular use of location services drains your battery in any significant way is unsubstantiated; seriously, show me this one function makes more than 1 second difference in a day and I would be shocked. The fact the location information doesn’t leave your phone makes the invasion of privacy argument moot. And the argument that Apple should have explained this to everyone in the first place ignores the fact it is a complete non-issue that, despite being now explained in full, a significant number of MR readers still can’t grasp the basics.

PLEASE STOP demanding that Apple anticipate every paranoid delusion.
Score: 9 Votes (Like | Disagree)
69Mustang Avatar
69Mustang
69 months ago
Since Apple controls the hardware and software stack, I think it would be neat if you could ask Siri about processes on your phone. Something like: "Siri, has my GPS been in use within the last xx timeframe?" If the answer is yes, Siri lets you know when and by what app or process. Seems like something that's within the realm of possibility.

/resists urge to make Siri joke
Score: 8 Votes (Like | Disagree)
now i see it Avatar
now i see it
69 months ago
Why is it that it always takes an Internet tech blogger to identify some hidden, undocumented, sneaky behavior in the iPhone (iOS 10 battery throttling etc) and then apple suddenly coming to the rescue to fix the "intended behavior" once they're found out?
Score: 8 Votes (Like | Disagree)
Read All Comments