Apple has recently released the iOS 13.4.1 update and iPadOS 13.4.1 The update is intended to correct a number of errors reported on iOS 13.4, including obstacles when using FaceTime.
As reported earlier, FaceTime calls from iOS 13.4 to older iOS and OS X devices have reportedly been problematic, such as not being able to make or receive FaceTime calls. In addition, the iOS 13.4.1 update also patches Bluetooth problems, where some users cannot choose the Bluetooth option from the quick actions menu in Settings.
Now, from Apple Insider , Monday (4/20/2020), Apple has apparently closed the iOS 13.4 signing code. This means that users who have updated to version 13.4.1, can no longer download or re-install iOS 13.4 versions earlier.
Apple has been regularly stopping OS code after releasing updates. This was done to protect consumers, because weaknesses in the previous system could be exploited by hackers for malicious purposes.
In addition, by preventing the legacy OS installation, Apple also “forces” users to always run the latest operating system with more enhanced features. iOS 13.4 itself was previously a major update given by Apple, where users can share iCloud folders, manage Mail, add Emoji stickers.
In addition, for the first time Apple has provided trackpad support on iPadOS, so iPad Pro users can install accessories such as Magic Keyboard. All iPhones running iOS 13 can upgrade to iOS 13.4. That means starting from the iPhone 6s to the latest iPhone can be updated to iOS 13.4.1.
Usually, there will be an automatic update notification. If you don’t get it, the user can update the system manually. The trick is to open the Settings menu> General> Software Update.