SMS prompts that Unicom's payment network is being opened, and it always fails. What happened?

The mobile phone is not connected to the internet, and the mobile phone is in arrears.

1. Because the mobile phone is not connected to the internet, the SMS prompts that the payment network is being opened, and it has been failed. You can open the phone interface, click Settings, Wireless and Network Options to see if the current wifi is connected.

2. It is the reason that the mobile phone is in arrears, which will also lead to the fact that the SMS cannot prompt that the Unicom payment network is being opened. Check whether there is any phone bill in the account. If the balance is insufficient, it needs to be recharged.