How to restore SMS authorization by changing assistants?

Hello, it can be solved by restoring the factory settings. If it still doesn't work, brush the machine to solve it. If you have used tools such as Change Assistant to restore the settings before you can use SMS normally again, please follow the prompts.

The short message interface (API version) is a short message (sms) interface independently developed for enterprise users with certain technical development capabilities. Interfaces adopt common forms, such as HTTP, WEBSERVICE, SGIP, CMPP, SMGP, etc. , can support various operating systems and development languages, support secondary development, embed SMS interface into your own system, quickly have wireless applications, and improve enterprise services.

SGIP interface is a standard interface protocol adopted by China Unicom. SMGP interface is the standard interface protocol adopted by telecom, and CMPP is the protocol standard adopted by mobile. The service interface protocols of these standards are also divided into several versions, such as CMPP is divided into 2.0 and 3.28 standards.