Why can't my mobile phone send a message to others and see my message? What happened?

Unable to display the sent SMS, involving system settings and memory problems. The solution is as follows:

1, observe whether the mobile phone has a signal (of course, you can't send text messages without a signal. If there is a signal, check whether the SMS storage is full, and delete it when it is full).

2. Test whether the call can be made normally. Getting through to the operator is not counted (test whether the mobile phone has phone charges).

3. Set the number of the SMS center (SMS Interface-Settings-SMS Service Center, for a series of numbers starting with +86, please consult or inquire with the SIM card operator).

4. Clear the cache and data (data may be lost, so back up first, manage and apply all address books, and clear the cache/data).

5. Take out the battery and restart it (also restart the non-removable battery)

6. Put the SIM card on another mobile phone to test (if it is normal, it is a problem with mobile phone settings; If it is not normal, please consult the SIM card operator).

7. Check whether the address book/contact person is disabled (management application-running, address book/contact person is still there, usually it is to optimize the disabling of management software settings, and find and cancel the disabling yourself).

8. Use third-party communication software (search in Baidu or mobile assistant software)

9. Restore factory settings (Settings-Backup and Reset/Privacy-Restore factory settings)

10, download ROM in official website (there are too many Roms, so you seldom contact them, please know for yourself, and it is best to download the official ROM).