I am a dual-card mobile phone, a mobile card and a Unicom card. Why do I always use Unicom card to send text messages by default?

When sending SMS, the default is Unicom card. There is something wrong with your mobile phone settings. Just change the settings.

How to change the 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 SMS settings, and the mobile card/Unicom card will always be used first when sending SMS. Or prompt when texting.

According to the type you want to change, just change it.