Kess V2 V4.036 Connection not established Solution

Here is the final working solution to Kess v2 firmware V4.036 master ecu tuning kit “Connection not established” error.



When I run Kess v2 v4.036 Ksuite V2.22 software on Win XP Dell laptop, it can not communicate, Kess gave me error “Connection not established” see  error screen shots here


kess-v2-connection-not-established-2 engineer solution:

Please replace the Resistance USB UL46 protection chip on Kess V2 4.036 PCB circuit board.



Customer feedback:

Ok update
I took this usb protection chip off my old ktag board.
Kessv2 now detected on usb :)
Thank you.

Note: If you have do not have old ktag/kess v2, you can contact our customer service to send you the UL46 protection chip.