Apple SMS didn't remind you how to open it.

Iphone6 SMS suddenly failed to receive any reminder, which was caused by the program failure of Apple's mobile phone system. You can try the following methods to solve the problem:

Turn off and restart Apple's mobile phone first, and wait until it is turned on normally to see if the SMS reminder is restored.

2. Upgrade Apple's mobile phone system to the latest iOS system. The specific setting process is as follows:

1. Take the iphone6 as an example, unlock the phone screen, find the setting options, and click to enter the next step.

2. Enter the settings page, slide the screen down to find the general options, and click Open to enter the next step.

3. Enter the general interface, find and click the software update option to enter the next process.

4. Enter the software update interface, click the download and installation option, and enter the next process.

5. In this interface, find and click the consent option in the lower right corner to enter the next step.

6. In this interface, you can check the download status of the system. After the download is completed, the phone will be restarted and upgraded to the latest system.