There is a feedback from one of our customer, he said he replaced chip and reset tokens, then get connection error “External exception EEFFACE” as following picture shows:

What’s the reason?

You may connect the kess V2 with internet or make it online update, causing the interface destroyed/broken.

How to repair it?

Buy a new NPX Fix chip (or called CPU Repair Chip) with 60 tokens inside. Desolder the old NPX and change it with the new.

Note: NPX is out of stock in some sites now, because the newest KESS V2 has the NPX preinstalled on the machine.

you have to weld a connector on the backside of interface , and plug the J-link programmer to reset the Kess v2 to be virgin.

Note: the newest KESS V2 is packed with J-link V8 programmer, no need buy additional one.