Apple Fixes iMessage Crashing Bug in iOS 8.4 Beta 4

Apple seeded the fourth beta of iOS 8.4 to developers yesterday with a fix for a messaging bug that causes an iPhone, iPad or iPod touch to crash after receiving a specific string of Unicode characters via iMessage or SMS (via HDBlog.it). The bug also affects the Mac and Apple Watch and extends to third-party messaging apps such as Snapchat, Twitter and WhatsApp, as the issue is tied to the way banner notifications process Unicode.

Sending the string of characters to an iPhone, iPad or iPod touch results in an immediate respring, causing the device to crash and quickly reboot. From there, if the Messages app was opened at a list view, the Messages app crashes automatically when you try to open it. If it was opened to the conversation where you received the message, the app will open, but attempting to go to another conversation causes Messages to crash.

imessagescrashingbug
Apple recently published a support document on its website with a temporary workaround for the problem, and ensured that a permanent fix would be issued in a future software update. That fix has arrived in the form of iOS 8.4, which will be released ahead of Apple Music's launch on June 30. In the meantime, affected users can ask Siri to "read unread messages" and use Siri to reply to the malicious message in order to regain access to the Messages app and delete the message.

Related Forum: iOS 8

Popular Stories

WWDC25 Live Coverage Feature 1

WWDC 2025 Apple Event Live Keynote Coverage: iOS 26, macOS Tahoe, and More

Monday June 9, 2025 9:00 am PDT by
Apple's Worldwide Developers Conference (WWDC) starts today with the traditional keynote kicking things off at 10:00 a.m. Pacific Time. MacRumors is on hand for the event and we'll be sharing details and our thoughts throughout the day. We're expecting to see a number of software-related announcements led by a design revamp across Apple's platforms that will also see the numbering of all of...
liquid glass

Apple Announces All-New 'Liquid Glass' Software Redesign Across iOS 26 and More

Monday June 9, 2025 10:13 am PDT by
Apple today announced a complete redesign of all of its major software platforms called "Liquid Glass." Announced simultaneously for iOS, iPadOS, macOS, watchOS, tvOS, visionOS, and CarPlay, Liquid Glass forms a new universal design language for the first time. At its WWDC 2025 keynote address, Apple's software chief Craig Federighi said "Apple Silicon has become dramatically more powerful...
maxresdefault

Everything Apple Announced at WWDC 2025 in 9 Minutes

Monday June 9, 2025 5:21 pm PDT by
At today's WWDC 2025 keynote event, Apple unveiled a new design that will inform the next decade of iOS, iPadOS, and macOS development, so needless to say, it was a busy day. Apple also unveiled a ton of new features for the iPhone, an overhauled Spotlight interface for the Mac, and a ton of updates that make the iPad more like a Mac than ever before. Subscribe to the MacRumors YouTube channel ...
iPadOS 26 Apple Newsroom

Apple Says iPadOS 26 is Compatible With These iPad Models

Monday June 9, 2025 11:22 am PDT by
Apple today announced that iPadOS 26 will be compatible with the iPad models listed below. iPadOS 26 features a new Liquid Glass design, a menu bar, improved app windowing, and more. iPadOS 26 supports the following iPad models:iPad Pro (M4) iPad Pro 12.9-inch (3rd generation and later) iPad Pro 11-inch (1st generation and later) iPad Air (M2 and later) iPad Air (3rd generation and...
iPhone Car Key WWDC 2025

Apple Says These 13 Vehicle Brands Will Soon Offer iPhone Car Keys

Monday June 9, 2025 2:38 pm PDT by
In 2020, Apple added a digital car key feature to its Wallet app, allowing users to lock, unlock, and start a compatible vehicle with an iPhone or Apple Watch. The feature is currently offered by select automakers, including Audi, BMW, Hyundai, Kia, Genesis, Mercedes-Benz, Volvo, and a handful of others, and it is set to expand further. During its WWDC 2025 keynote today, Apple said that 13...
AirTag Backpack

New AirTag With Three Upgrades is 'Nearly Ready' to Launch

Sunday June 8, 2025 11:44 am PDT by
Apple's long-rumored AirTag 2 might be coming soon. In his Power On newsletter today, Bloomberg's Mark Gurman briefly mentioned that a new AirTag is "nearly ready" to launch. Last year, he said that it would be released around the middle of 2025, and the midpoint of the year is just a few weeks away. "The new AirTag is nearly ready, having been prepared for launch over the past several...
Apple WWDC25 iOS 26 hero 250609

Apple Announces iOS 26 With 'Liquid Glass' Design, Live Translation, Overhauled Phone App, and More

Monday June 9, 2025 11:00 am PDT by
Apple at WWDC announced iOS 26, introducing a comprehensive visual redesign built around its new "Liquid Glass" concept, alongside expanded Apple Intelligence capabilities, updates to core communication apps, and more. Liquid Glass is a translucent material that reflects and refracts surroundings to create dynamic, responsive interface elements, according to Apple. The new design language...

Top Rated Comments

6836838 Avatar
131 months ago
This bug is just so terrible. At least everyone's devices will be usable on the 30th.
If you have friends sending you that message, you don't need an update. You need new friends.
Score: 14 Votes (Like | Disagree)
nepalisherpa Avatar
131 months ago
I'm surprised that they chose to implement this in 8.4 rather than releasing a small update right away.
Score: 4 Votes (Like | Disagree)
keysofanxiety Avatar
131 months ago
downloaded and confirmed. this weird text string does not crash my phone. Let's wait to see what new creative text string someone comes up with?
It's definitely going to be a combination of words that would never be used in the same sentence. "Purchase new Blackberry phone" would be a good one to try.
Score: 4 Votes (Like | Disagree)
2457282 Avatar
131 months ago
downloaded and confirmed. this weird text string does not crash my phone. Let's wait to see what new creative text string someone comes up with?
Score: 3 Votes (Like | Disagree)
bushido Avatar
131 months ago
there was a beta 4 release yesterday? was there a post? didnt even know :-o

edit: oh there was!

anyway glad its been fixed :)
Score: 2 Votes (Like | Disagree)
Thunderhawks Avatar
131 months ago
Well that sucks... I guess Apple hasn't seen high schools since the bug came out :D
God forbid high school students would have to put away the phone and talk to somebody face to face.
Score: 2 Votes (Like | Disagree)