How to send messages using the main account on iPhone

Hello, Apple’s method of switching primary and secondary cards by sending text messages, taking iPhone XR as an example. The specific steps are as follows:

1. Open your mobile phone homepage and click Information to enter.

2. Enter the information interface and click New.

3. Enter the new interface and click on the recipient.

4. Enter the recipient number or add it in the address book.

5. After the recipient is added, the default mobile phone card name will appear. Click on the mobile phone card, as shown in the picture below.

6. Two card options appear. Switch to the card you want to use.

7. The switch is successful. Enter the text message and click Send.