ECUHELP KT200 II user feedback: the first time I did a complete reading VW Delphi DCM6.2V on bench. and writing via obd worked. 40 min reading to bench, 20 min write to obd! then I tried the same car with vr and writing. all good (kt200II with pcb update)
Please refer to the following link which is about KT200II May Update (Software Download, Update Guide, Detail)
https://www.ecuhelpshop.com/product-technical/kt200ii-may-update-software-download-update-guide-details.html
Another customer feedback:
Use KT200 II (not the PCB Update) to write Delphi DCM6.2V with failure, Checksum was corrected with winols (refer to the following image).
this modified file is not from VR database, I had the file written.
Possible reason and solution:
That’s why it tries to write in the protected area. All tools use different files.
I guess you converted.frf file to .bin in winols? It’s not gonna work KT200 II wont write in OTP area, need to reflash ecu with odis to lower sw version and try read again.