Motorola Unicom card can't send short messages, but it can answer phone calls and receive short messages.

Hello, what you said may be that the SMS line is blocked. If you have sent a lot of text messages recently, the above problems may occur. Generally, after a period of time, restarting the phone will restore it.

If it has not recovered, the owner can bring his valid ID to the local business hall or call the customer service hotline 100 10, and the customer service representative will help you refresh the Chinese SMS function test.

In addition, if your mobile phone card is cut, you may not be able to send text messages; Or the machine card does not match, which may also lead to abnormal use. You can try to reissue a card in the business hall, but there is usually a charge.