Joke Collection Website - Public benefit messages - Sending a message can't change imessage back. How can I change it back?

Sending a message can't change imessage back. How can I change it back?

Tools to be prepared: iPhone 7 mobile phone.

1. Take iPhone 7 as an example. First, find the "Settings" icon on the iPhone home screen and click Open.

2. Find the "General" option in the settings list, and then click Enter.

3. Find the "Restore" option at the bottom of the general list, and then click Enter.

4. Click the "Restore Network Settings" option in the restore list.

5. Then click the "Restore Network Settings" button to solve the problem.