Why are the call records and text messages of Nubian mobile phones missing?

Because of the system error, you can go back to the factory to have a look, or call 10086 and it will send a text message and try to restart the phone.

Settings-More wireless connections, set the default messaging application to messaging.

Mobile phone contact-more-advanced contact option, set the default storage as mobile phone memory, then import the contacts of mobile phone card into the mobile phone, merge the repeated people, and then dial into the mobile phone to check the call record.

If a third-party address book software is installed, uninstall it and try again.