Why does sending 0000 to 10086 always say that sending failed?

Your cell phone signal may not be very good. You can try sending other short messages to your friends. If it is normal, it is not a cell phone signal problem. It may be 10086 system maintenance, and the service is temporarily terminated. It doesn't matter. If you are in a hurry to handle business, you can call 10086 for voice service, or press 0 to select manual service, and a patient operator will answer your questions, o (∩ _ ∩) o. ...