What's the exclamation point on the information display of Apple's mobile phone?

The reasons why brand mobile phone information displays exclamation marks are network problems, iMessage failures and operating system problems.

1, network problem: the exclamation point of Apple's mobile phone information display is that the mobile phone network is unstable or the signal is not good, resulting in unsuccessful information transmission. The solution is to try to move the mobile phone to a strong signal area or wait for the signal to return to normal.

2.iMessage failure: If iMessage service is used, iMessage failure or setting problems will cause an exclamation point to be displayed on Apple's mobile phone information. The solution is to check the message settings, make sure that "iMessage" and "Send as SMS" are turned on, and make sure that the Apple ID and phone number are set correctly.

3. Operating system problem: The operating system problem on the device will cause the information on Apple's mobile phone to display an exclamation point. The solution is to try to restart the device or update the device to the latest iOS version. If the problem still exists, you can consider restoring the equipment to the factory settings.