Why can I receive text messages only when my mobile phone is turned on?

Mobile phones often produce some garbage fragments, which need to be cleaned up in time. Therefore, it is suggested that you process the software in the next mobile phone system, or you often pay attention to turning it off and restarting, the mobile phone will be automatically updated, and the network signal and acceptance sensitivity will be greatly improved. Also, it is normal to have a delay in sending and receiving text messages. Information is received when the phone is turned off, but the system will not send it to your phone until you turn it on.