How to mark a read message as unread?

This function is only useful for some mobile phones. Clicking the menu button of SMS will change the message to unread, but not all mobile phones have it.

It should be noted that this function only applies to messages in inbox and my folder, but not to messages in outbox and draft box.

To mark unread SMS messages on iPhone as read, the following steps are taken:

First, enter the information interface of iPhone, and unread messages will be displayed first. Click the edit button in the upper left corner to enter the editing interface.

Find the "Read" button in the lower left corner and click it.

After clicking this button, all unread messages will become read.

If there is a lot of unread information bothering you, you might as well use this method to solve it with one click.