Lenovo a750e telecom mobile phone information can't be sent out. What happened?

Common SMS communication failures can usually be solved by cleaning the inbox, dialing UIM card and restarting the mobile phone.

If it can't be solved, check whether the mobile phone is equipped with 360 assistant, etc. , which may mistakenly turn off the self-start function of the SMS process. It is recommended to check this function and turn it on.

If it still doesn't work, check whether QQ address book and other software are installed. Information may not be sent due to compatibility and stability reasons. If it still doesn't work, it is recommended to back up the data of the mobile phone and restore the factory settings.