Xiaomi 4 can't send text messages

1. Please insert your mobile phone card into other mobile phones to see if you can send and receive short messages.

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

If you can send and receive short messages, I suggest that you re-insert the card into your mobile phone and send yourself a short message to see if you can receive it.

Please enter the SMS center and contact your mobile operator to check your SMS center number.

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

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