How to use the G-BOS video player of Hagrid Bus?

I am an engineer of Hangzhou Hongquan Digital Equipment Company, and participated in the research and development of G-BOS video playback function. The specific operating instructions should be regarded as relatively complete. If you don't have the latest manual, you can leave your email address, and I will send you the latest version of the G-BOS intelligent operating system user manual. Welcome to make valuable comments on G-BOS! thank you