Why does the short message sent by Unicom card in my name show that it is a mobile card?

When sending a text message, the default is to send a mobile phone card, but there is something wrong with the settings of your mobile phone, so you need to change the settings.

General method to change settings:

1, open the settings in the phone.

2. After the settings open, click the phone card settings.

3. At this time, there will be call settings and SMS settings.

4. Select the SMS setting, and you will always use the mobile card/Unicom card when sending SMS. Or prompt when texting.

According to the type you want to change, just change it. If it still doesn't work properly, it is recommended to change the machine for testing or consult the mobile phone brand.