Apple iOS 11.2.6, MacOS 10.13.3, WatchOS 4.2.3 Supplemental Update Is Now Rolling To Fix Character Sequence App Crash Bug

Apple is currently rolling a series of updates for all of its platforms. This includes Apple iOS 11.2.6, macOS 10.13.3, watchOS 4.2.3 updates. These are supplemental updates. Apple iOS 11.2.6 fixes App crash due to use of character sequences. It also resolves the issue where 3rd party Apps not connecting to external accessories. The App crash issue is a common bug occurring over all the platforms. So, apart from Apple iOS, macOS and watchOS also solve this update. The macOS High Sierra 10.13.3 Supplemental Update weighs around 592 MB.

Apple iOS 11.2.6

Apple already accepted the bug regarding the character sequence leading to App crash. It did roll out the beta version and promised that the public version will solve this bug. This is one major bug that required addressing over all the platforms. In fact, the Apple devices running on iOS 11.2.5 or macOS are very susceptible to this bug. Those who may not be knowing, receiving a text message in Telugu has been crashing the messaging apps in all the iOS, MacOS, and watchOS platforms. This would lead to crashing of the messaging App that won’t even fixing on force reboot. Instead, the device would stay in an endless series of bootloop.

Apple Inc. is an American multinational technology company based in Cupertino, California. It was founded by Steve Jobs, Steve Wozniak, and Ronald Wayne on April 1976. It was later incorporated as Apple Computer, Inc. in January 1977. They design, develop, and sell consumer electronics, computer software, and online services. The company’s hardware products include the iPhone smartphone, the iPad tablet computer, the Mac personal computer, the iPod portable media player, the Apple Watch smartwatch. They also sell the Apple TV digital media player and the HomePod smart speaker. Apple’s software includes the macOS and iOS operating systems, the iTunes media player, the Safari web browser, and the iLife and iWork creativity and productivity suites, as well as professional applications like Final Cut Pro, Logic Pro, and Xcode. Its online services include the iTunes Store, the iOS App Store and Mac App Store, Apple Music, and iCloud.

Changelog: Apple iOS 11.2.6, macOS 10.13.3, watchOS 4.2.3 Update

Here is the collective changelog of Apple iOS 11.2.6, macOS 10.13.3 and watchOS 4.2.3.

  • Fixes an issue where using certain character sequences could cause apps to crash
  • Resolves an issue where some third-party apps could fail to connect to external accessories

Temporary Fix For App Crash Due To Character Sequences

Well, there is a temporary fix for the character sequence App crash bug. This is for those who have not received the Apple iOS 11.2.6 update yet.


We know that the bug leads to crash and endless bootloop cycle. The temporary solution that could follow is to have someone message you.  Then delete the thread containing the malicious message. We suggest it’s wise to get the update as soon as possible.

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So, that’s about it. Since it is a malicious and irritating bug, catch the Apple iOS 11.2.6, macOS 10.13.3, watchOS 4.2.3 updates for your respective devices ASAP.

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Sources: 1,2,3

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