Why can't the message be sent? It says sending failed.

The reasons are: 1. The mobile phone is in arrears; 2. The number to be sent has a firewall; 3. The network may be poor or not covered; 4. A large number of text messages have been sent recently and were judged to be advertisements or The text message was spam, so it was intercepted; 5. The phone memory is full.

The operating environment of this tutorial: Magic UI 4.0.0 system, HONOR V30 mobile phone.

1. It is possible that the mobile phone is in arrears. If the mobile phone is in arrears, there is no way to send text messages. It is recommended to call the customer service hotline to check the phone bill. If the bill is in arrears, pay the bill as soon as possible.

2. The number you want to send has a firewall set up, and your text messages will be rejected. In this case, it will show that the message was sent successfully but the receipt failed. Although the other party cannot receive it, you will still be deducted the SMS fee.

3. It may be that the network is not good or there is no coverage. Moving somewhere or restarting the phone may be able to solve the problem.

4. A large number of text messages have been sent recently and were judged to be advertisements or spam messages, so they were blocked.

5. The phone memory is full, which may also cause text messages to fail to be sent. It’s a good idea to clean up your text messages regularly.

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