Why can't the mobile phone send a short message to 100 10?

The reasons why the mobile phone can't send SMS to 100 10 are: 1, and the number of SMS center is not set successfully. At this time, first enter the "Information Settings" in the SMS, and then enter your own SMS center number according to the prompt (please consult the operator's customer service), and then you can restore it after saving; 2. The SMS function is turned off. At this time, you need to contact the customer service of the operator and turn on the SMS function; 3. This number is only for sending short messages. Generally, mobile phone software lists the code of 100 10 as a restricted list, so such software can be uninstalled, or the code of 100 10 can be removed from the restricted list for recovery.