Joke Collection Website - Public benefit messages - My mobile phone always displays "sending" when sending messages, but it is unsuccessful. What happened?

My mobile phone always displays "sending" when sending messages, but it is unsuccessful. What happened?

The main reasons are as follows:

1, which is caused by abnormal network communication. It is suggested to try another time period;

2, check whether there is downtime and arrears, need to recharge;

3. Check whether the recipient's number is correct. If it is incorrect, the message may not be sent;

4. Try calling to see if the mobile phone card is damaged, or check whether the number in the SMS center is correct.