B315-936 unlock on MKey error

Hi I just received my new MKey today and I am trying to unlock B315-936 but I receive this error
I have 6 devices same error

16.58.32 : --------------- Read device information -----------------------
16.58.33 : DEAD Mode Detected = True
16.58.42 : ----------------------------------
16.58.42 : Init Rom .. 00FF0100000D54000000006A Ok
16.58.43 : ----------------------------------
16.58.43 : Write Boot .. 00FF02005DB5B95F700000D2 Ok
17.00.46 : ComPort not Found! - Error!