My Receiver Is Echosat, I Tried To Upgrade The Software And Use Arioner.exe To Load It, But I Can't Upload The Software To Receiver, There Is A Message "download Fail" Appear On My Screen, My Cable Is Null Modem, The Diagram Is 2 To 3, 3 To 2 And 5 To 5? Can Anybody Please To Solve My Problem?