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Users have discovered an annoying bug in the iOS 8 operating system. If someone sends you a message with specific Unicode characters on your iPhone, iPad, or even Apple Watch, it can cause your entire device to restart.

Unicode is a table of characters of all existing alphabets, and it seems that the Messages application, or rather its notification banner, cannot cope with displaying a specific set of characters. Everything will result in the application crashing or even restarting the entire system.

That text, which can also prevent further access to the Messages application, does contain Arabic characters (see image), but it is not a hacker attack or that iPhones cannot cope with Arabic characters. The problem is that the notification cannot fully render the given Unicode characters, after which the device's memory fills up and a restart occurs.

It is not entirely clear which version of iOS is affected by this issue, however users are reporting various versions from iOS 8.1 to the current 8.3. Not every user will experience the same symptoms – the application crashes, the system restarts, or the inability to open Messages again.

The error only occurs if you receive a notification with the wording of the incriminating message - either on the lock screen or in the form of a small banner at the top when the device is unlocked - not when you have the conversation open and the message arrives at that moment. However, it does not have to be only the Messages application, but also other communication tools through which a similar message can be received.

Apple has already announced that it is going to fix the bug, which actually affects specific Unicode characters, and will bring a fix in the next software update.

If you want to avoid possible problems, it is possible to turn off notifications for Messages (and possibly other applications), but if one of your friends doesn't want to shoot you, you probably don't have to worry about anything. In the event that you have already fallen victim to the annoying error and cannot get into the Messages application, just send any photo from Pictures to the given contact from whom you received the problematic text. The application will then open again.

Source: iMore, Cult Of Mac
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