Why does the blue paper clip icon appear in the upper right corner when Xiaomi 4 sends a text message?

That is used to insert attachments, such as when sending multimedia messages.

Extended reading

Xiaomi 4 mobile phone can't send SMS processing method:

1. We need to go back to your phone desktop and click the Settings icon.

2. After entering, the system will prompt a lot of setting options, and we have been rowing.

3. Up to the bottom, on the top, you can see an application option, and we click to enter.

4. After entering, we found the icon of SMS and entered the relevant settings.

5. In the center of the interface, there is an option named Clear Data. If it has not been processed before, you can click this option. Let's click on it.

6. Then, at the bottom of the interface, we can see an option called End Run. Let's click on it.

7. The system will prompt you that the application of SMS may be abnormal. If we really have a problem, then you don't have to worry, just click OK.

8. If you send another short message, you will find that it can be sent successfully again.