Kess v2 fw4.036 error External exception EEFFACE, how to solve?

Someone feedback they got connection error “External exception EEFFACE” when they replace chip and reset tokens.

ksuite external excepion eefface

Solution 1:

1 downloads this

2 install it,

3 ID and pw is :


find —HD1—ecu chips programmer—kess v2—se87-d

in this folder,has driver download

Please install this one

Solution 2: You are advised to try the following:

1. the interface may be destroy/broken if you connected this clone tool to internet, or update online.

1.Desolder the old NPX and change it with a new NPX chip with 60 tokens inside. It cost 13.

14 some users call this chip as CPU Repair Chip, available at: -20USD

Note: NPX is out of stock in some sites now, because the newest KESS V2 need not replace NPX, the NPX is preinstalled in the machine .

3.–or you have to weld a connector on backside of interface ,and plug the J-link programmer.
You can reset the Kess v2 to virgin. is available with J-link V8, cost about 20USD, user can buy at: . Note: the newest KESS V2 V2.06 is packed with J-link V8 programmer, no need buy additional one.

kess v2

How to use j-link v8 to solve Kess V2 master tokens limited problem:

Step 1. Buy one LPC2478 chip to replace the original one for KESS V2 master.

Step 2. Prepare for a LINK J-LINK V8 ARM USB-JTAG Adapter Emulator.


Step 3: weld a connector on backside of interface.

kess v2 chip

Step 4: plug the J-link programmer

kess v2 chip and jlink
I hope it can solve your problem.