1. Click information on the desktop on the mobile phone.
2. In the mobile phone hardware, click menu. On the displayed page, click set.
3. Here you will see an information center. Click it.
4. Enter the short message service center number provided by the local network supplier and click OK ].
If the setting is correct, we can send text messages normally. If you do not know how to set it, you can search for it online or call 10086 or 10000.
Reminder
1. The number of the SMS service center must be in front of + 86 rather than + 086. This is a representative of the Chinese mainland. (you can enter the number by pressing "0" or "+)
2. If you do not know how to set up the SMS center number, you can call China Mobile 10086 or China Unicom 10000.
3. If none of the above problems exist, we can try another Sim card. If not, restore the factory settings of the mobile phone.