“It looks for the correct code and the right environmental alerts which will unlock the program, and it also makes sure that it’s an authorized flight. In a nutshell, it makes guaranteed it normally works when we want it to and by no means when we don’t.” ?ây là ch??ng trình luôn có s?n ?? b?t c? khi nào b?n tham gia ??u có c? h?i n