Apple Stops Signing iOS 17.6, Downgrading No Longer an Option
Apple today stopped signing iOS 17.6, preventing iPhone users from downgrading to that version of iOS. The update is no longer being signed after Apple released iOS 17.6.1 on August 7.
Apple regularly stops signing older version of iOS, typically within a week or two after a new version is released. When Apple stops signing an update, it can no longer be installed on an iPhone due to a server-side software verification check, so those who have updated to the latest version of iOS cannot downgrade.
Preventing downgrading encourages users to keep their operating systems up to date with the latest security fixes.
iOS 17.6 focused on introducing security fixes, while iOS 17.6.1 added a fix for a bug that could prevent the enabling or disabling of Advanced Data Protection.
iOS 17.5.1 addressed a corruption bug that could cause deleted photos to reappear on an iPhone. There were no notable features in the iOS 17.6 update, with Apple adding unspecified bug fixes and security updates.
Popular Stories
Less than a week before Apple debuts new iPhone 18 Pro models, research firm TrendForce has estimated the prices of the devices based on the latest hardware cost environment.
TrendForce's price estimates compared to last year's models look like this:
Model
Starting Price
Model
Starting Price
Change
iPhone 17 Pro
$1,099
iPhone 18 Pro
$...
Apple has added a new "iPhone Handoff" feature to iOS 27 that will allow you to switch between two iPhones while using the same phone number on each device.
This functionality was briefly mentioned during the WWDC 2026 keynote in June, on a slide that listed hundreds of new features coming in iOS 27 and corresponding software updates, but Apple never shared any further details at the time.
...
While the iPhone 17 Pro has double the base storage compared to the iPhone 16 Pro, there will apparently be no further increase this year.
Taiwanese research firm TrendForce today again reported that the iPhone 18 Pro models will start with 256GB of storage, like the iPhone 17 Pro models.
Minimum storage capacities by model:iPhone 16 Pro: 128GB
iPhone 17 Pro: 256GB
iPhone 18 Pro...
