Why can't Card 2 send and receive short messages?

There are many reasons why mobile phones can't send text messages.

1 .card 2 is in arrears.

2. There is something wrong with the setting of SMS center.

3. Bad signal (cell phone reason)

4. It is recommended to install third-party mobile phone software compatible with dual-card and dual-standby SMS as much as possible. For example, calling, choosing a card before sending a text message, and sending a free text message are all very useful.

You can download the latest version directly from Baidu Dentsu.