Why is my mobile phone waiting to send text messages? Recently, I sent a short message, which sometimes shows that I am waiting, but not when I restart. What is this?

First, check whether the short message space is too full, and you can delete some unnecessary information. In addition, if you look at the information center number, you can re-enter and close it yourself, just like the system update. There is also a long standby will affect the sending and receiving of information. Just close it. If this is still the case, it is recommended to change the machine for testing.