Meizu mx3 SMS can't be sent out.

Solution: 1 Check whether the mobile phone is in arrears. 2. Open the SMS settings to see if the service center number is normal. 3, check whether the local signal is normal, you can use other mobile phones to try to send text messages. 4. Open the security center of the mobile phone, click to clear the cache of the mobile phone, and then turn it off and restart. 5. Turn off the phone, then press and hold the power button and the volume up button at the same time, shake and let go, and then select Clear All Data. 6. Go to Meizu official website to download the latest firmware, brush the firmware again, and select Shuangqing. 7. It is recommended to go to the local Meizu authorized service experience center and ask an engineer to test it.