[00:00:07  COM4]:MiFlash 2017.4.25.0
[00:00:07  COM4]:[COM4]:start flash.
[00:00:07  COM4]:cannot receive hello packet,MiFlash is trying to reset status!
[00:00:08  COM4]:cannot receive hello packet,MiFlash is trying to reset status!
[00:00:10  COM4]:cannot receive hello packet,MiFlash is trying to reset status!
[00:00:11  COM4]:cannot receive hello packet,MiFlash is trying to reset status!
[00:00:12  COM4]:cannot receive hello packet,MiFlash is trying to reset status!
[00:00:13  COM4]:cannot receive hello packet,MiFlash is trying to reset status!
[00:00:14  COM4]:cannot receive hello packet,MiFlash is trying to reset status!