Apple Stops Signing iOS 16.6, Downgrading From iOS 16.6.1 No Longer Possible - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

Apple Stops Signing iOS 16.6, Downgrading From iOS 16.6.1 No Longer Possible

Following the launch of iOS 16.6.1 on September 7, Apple has stopped signing iOS 16.6, the previously available version of iOS. Now that iOS 16.6 is no longer being signed, it is not possible to downgrade to that version of iOS after upgrading to iOS 16.6.1.

iOS 16
Apple routinely stops signing older versions of iOS after new releases come out to encourage customers to keep their operating systems up to date, so it is not unusual that the iOS 16.6 update is no longer being signed.

iOS 16.6.1 is an update that addresses a zero-day security vulnerability that Apple says was actively exploited in the wild. If you have not updated, it is a good idea to do so.

Related Forum: iOS 16

Popular Stories

iCloud iPhone 17 Pro

iPhone Users Who Pay for iCloud Storage Get Two New Perks on iOS 27

Thursday July 2, 2026 6:10 am PDT by
If you pay for certain iCloud+ storage plans beyond the 5GB that Apple offers for free, you will receive two more perks on iOS 27 at no additional cost. A summary of the two new iCloud+ perks on iOS 27:Increased daily usage limits for some new Apple Intelligence features, including image generation in the revamped Image Playground app. HomeKit Secure Video cameras receive generated video...
iPhone 4 on Black Feature

Apple Facing One of Its Worst Leaks Since the iPhone 4

Thursday July 2, 2026 9:53 am PDT by
Apple supplier Tata Electronics recently suffered a cyberattack that resulted in thousands of confidential files being published on the dark web, and this reportedly included some photos and documents related to the upcoming iPhone 18 Pro. We have elected not to share any of the leaked photos in this story due to the illegal nature in which they were obtained, but they can easily be found...
American Express Gold Apple Pay Feature

American Express Announces New Apple Pay Feature

Tuesday June 30, 2026 10:27 am PDT by
American Express today announced that you can now redeem Membership Rewards points when checking out with Apple Pay on the web and in apps on the iPhone and iPad. When checking out with Apple Pay on iOS 18 or iPadOS 18 or later, tap on your eligible American Express card (Platinum, Gold, Green, and others) and select the Membership Rewards points option. You can use points to cover all or...

Top Rated Comments

sw1tcher Avatar
37 months ago

Don't worry. Some of the bugs they've introduced in iOS 15 & 16 will be fixed in iOS 17
iOS 17 will fix those bugs while introducing new bugs.
Score: 6 Votes (Like | Disagree)
antiprotest Avatar
37 months ago
Onward to iOS 17!
Score: 3 Votes (Like | Disagree)
JosephAW Avatar
37 months ago
Don't worry. Some of the bugs they've introduced in iOS 15 & 16 will be fixed in iOS 17 so get ready with your iPhone SE G1, iPhone 7 & 8 and X. o_O
Score: 2 Votes (Like | Disagree)
winxmac Avatar
37 months ago
If you want to remain on iOS 16, iOS 16.7 RC is available as OTA only update for A12 Bionic devices and newer... You just need to either install the developer profile or enable developer updates on iOS 16.4 and later...
Score: 1 Votes (Like | Disagree)