Quoted one KT200II user's feedback: 

Maybe for someone is useful a KT200ii information thread, witch "newer" ECUs it read / write well.

I used before sometimes KT200, and most ECUS was fine, 1 week ago i got Marelli MJ9DF HW002, and KT200 cant write.

Now i did upgrade to Kt200ii, and HW002 on Bench was perfect working read / write. No bootmode needed.

Maybe some other post there experience with KT200ii and newer ecus here too.

Did MJ9 with "old" HW ID. Like 000 or 001 at the end. HW002 only genuine tools can to over bench, and for now not all of them. Upgrade i did over ecuhelpshop.com. There i get new main device, all other cabels are the old one. And no, no bench box needed.



I tried with kt200 this ecu:

52141506

DV10A830  

MJ9DFHW002 b / c



Fiat Ducato 2.3 2021

Was not possible not over obd, bench or boot.

KT200ii worked fine in bench.