How to send text messages with a mobile secondary card, and how to choose to send text messages with a secondary number instead of a primary number?

In the new SMS function of mobile phone, you can directly choose to use the secondary card to send. The specific operation steps are as follows:

1, click the "SMS" icon on the mobile phone;

2. Click the new SMS icon;

3. Click the "+"behind the recipient to select the recipient's mobile phone number, or directly enter the mobile phone number;

4. Enter the short message content;

5. Click to send the mobile phone number and select the mobile phone number of the secondary card;

6. Click the "Send" icon.