Unable to open SMS. What is the reason?

1. Please put your mobile phone card in another mobile phone to see if you can send and receive short messages.

2. If you can't receive the short message, please contact the network operator to see if it's the sim card.

3. If you can send and receive short messages, it is suggested that you plug the card back into your mobile phone and send yourself a short message to see if you can receive it.

4. Please enter the short message center and contact the mobile operator for the number of the short message center.

5. If the number is correct, please temporarily uninstall the system security software.

6. If it still can't be solved, please back up the data, enter Restore to clear the cache, user data and all data, and don't restore the system settings after entering the system.

7. If you still can't recover, please go to the nearby maintenance point for inspection.