Meizu mx4 can't send text messages. What to do?

How to deal with the problem that mobile phones can't send and receive short messages;

① Check whether the mobile phone network is abnormal.

(2) Check the SMS blacklist to see if there is any SMS blocked. At the same time, you can also consult the operator to see if the card is abnormal, get the number of the SMS center, and open the SMS-Settings-SMS Center Reset Test.

③ If you use security housekeeper software such as 360 or turn on ROOT permission, I suggest you try to uninstall all mobile phone management software, turn off root permission and then restart the machine to see if there is any improvement.

④ You can try to change an original small card for testing.