My China Unicom card suddenly stopped sending text messages. What happened?

To confirm whether the mobile phone is in arrears, try calling. If you are in arrears, it is recommended to pay.

The phone is not in arrears. Check whether airplane mode is turned on and turn off airplane mode. Communication problems may be caused by poor signal or communication errors.

If you don’t understand the operation, you can directly dial 10010 to check the corresponding information center number. If it still doesn’t work according to the above operations, it may be due to the network. If you are in arrears, you will not be able to send text messages. After paying the phone bill, restart the phone and try again.

Extended information:

Notes on sending text messages on mobile phones:

Frequency of sending text messages: Do not frequently send promotional text messages to customers, because this will give customers Bringing unnecessary pressure, frequently sending promotional text messages will also interfere with customers' normal lives and cause customer displeasure, which is counterproductive.

Be sure to sign your name clearly: Whether you are a client, colleague or friend, as long as you cannot remember your mobile phone number, you must sign your name after the message to let the other party know who sent the message.