Well, in your original post on the original thread you said:
"3) Download .s19 file via USB connection with test tool"
So, you are no longer trying to do things that way.
Ok, well first of all the the embedded bootloader is out of the picture, and you will be using the BDM with burner.exe. Also, pushing the buttons will not matter because the burner.exe will reset the board with the BDM when it burns.
I also think that you will need to set "Build Extras", "Use External Debugger" and fire off the burner from there. I have not used burner.exe myself, but I have used this method when I needed to do other things with the output.