How to eliminate the red exclamation mark on short messages?

The method of removing the red exclamation mark on the short message is as follows:

1, Apple mobile phone

Set the notification message off flag and set the message iMessage. In the following cases, generally speaking, the "Send and Receive" message is not filled in, or iMessage has not been successfully activated/is waiting for activation. Click Send and Receive, fill in the receiving method of iMessage, and then click Send and Receive again. If the red exclamation mark is still there, switch flight modes several times or shut down and restart; If the red exclamation point is still there and the flowers with information are sending and receiving, turn off iMessage. Sometimes the red exclamation point with Sim card will disappear.

2, Android phone

Open the phone settings, click System and Update; Select Reset, then click Restore Network Settings and slide to the bottom; Click Restore Network Settings to restore network settings. Android mobile phone Sometimes, there are MMS messages in short messages, which will disappear if they are not downloaded.

Brief introduction of SMS:

Short Message Service (SMS for short) refers to the text or digital information directly sent or received by users through mobile phones or other telecommunication terminals. The number of characters that users can send and receive SMS at a time is 160 English or numeric characters or 70 Chinese characters.