This article is quoted from one user’s feedback:
I add my experience with ECUHELP KT200 ECU programmer.
I bought many kt200 and 2 of this fail, the problem is that when program started all button are grayed with no possibility to select drivers and then to do any job.
i did many little test to understand and finally, the problem is the green board inside the tool, that is not chip killer as i think, is only a method to work with this tool. This board encrypt data to/from server to start program and to do job…anyway for some reason the tool fail.
after some test in teamviewer with the ECUHELP Support, they tell me that the problem is the board and sent to me two new board, i installed it and problem is solved.

Finally, KT200 works are shown below.

Official shop:
Oliver WhatsApp: