[22:51:10  COM20]:MiFlash 2018.5.28.0
[22:51:10  COM20]:flash in thread name:COM20,id:14
[22:51:10  COM20]:sw in images
[22:51:10  COM20]:flash in thread name:COM20,id:14
[22:51:10  COM20]:[COM20]:start flash.
[22:51:10  COM20]:cannot receive hello packet,MiFlash is trying to reset status!
[22:51:11  COM20]:try to reset status.
[22:51:11  COM20]:Switch mode back
[22:51:11  COM20]:cannot receive hello packet,MiFlash is trying to reset status!
[22:51:12  COM20]:try to reset status.
[22:51:12  COM20]:Switch mode back
[22:51:12  COM20]:cannot receive hello packet,MiFlash is trying to reset status!
[22:51:12  COM20]:try to reset status.
[22:51:13  COM20]:Switch mode back
[22:51:13  COM20]:cannot receive hello packet,MiFlash is trying to reset status!
[22:51:13  COM20]:try to reset status.
[22:51:13  COM20]:Switch mode back
[22:51:13  COM20]:cannot receive hello packet,MiFlash is trying to reset status!
[22:51:14  COM20]:try to reset status.
[22:51:14  COM20]:Switch mode back
[22:51:14  COM20]:cannot receive hello packet,MiFlash is trying to reset status!
[22:51:14  COM20]:try to reset status.
[22:51:14  COM20]:Switch mode back
[22:51:14  COM20]:cannot receive hello packet,MiFlash is trying to reset status!
[22:51:15  COM20]:try to reset status.
[22:51:15  COM20]:Switch mode back
[22:51:15  COM20]:cannot receive hello packet,MiFlash is trying to reset status!
[22:51:15  COM20]:try to reset status.
[22:51:15  COM20]:Switch mode back
[22:51:15  COM20]:cannot receive hello packet,MiFlash is trying to reset status!
[22:51:16  COM20]:try to reset status.
[22:51:16  COM20]:Switch mode back
[22:51:16  COM20]:cannot receive hello packet,MiFlash is trying to reset status!
[22:51:16  COM20]:try to reset status.
[22:51:16  COM20]:Switch mode back
[22:51:16  COM20]:System.Exception: cannot receive hello packet
   at XiaoMiFlash.code.bl.SerialPortDevice.SaharaDownloadProgrammer()
   at XiaoMiFlash.code.bl.SerialPortDevice.XiaomiFlash()     at XiaoMiFlash.code.bl.SerialPortDevice.SaharaDownloadProgrammer()
   at XiaoMiFlash.code.bl.SerialPortDevice.XiaomiFlash()
[22:51:16  COM20]:no provision exit:COM20
[22:51:17  COM20]:flashSuccess False
[22:51:17  COM20]:isFactory False CheckCPUID False
[22:51:17  COM20]:before:flashSuccess is False set IsUpdate:True set IsDone True
[22:51:17  COM20]:after:flashSuccess is False set IsUpdate:false set IsDone true