How to cancel the SMS being sent by my smartphone?

1. Upgrade and develop rom first, and turn on the SMS function that comes with the mobile phone;

2. In the SMS main interface, find the "Menu" at the lower right and select the last item "Settings" to avoid entering the secondary page;

3. Find the general part in the settings page, and the third part is the function of "cancel sending", check it;

4. After selecting the cancel sending function, switch to the sending information interface. After sending the message, there will be a countdown of 4 seconds;

5. Double-click the content of the short message to cancel sending, and the content of the short message will return to the edit box and become a draft for later use.