Question asked by a users in some forum,i quotated here for sharing

" My KESS 5.017 has stopped working suddently,and inform of me ""External exception EEFFACE" Error ,like following pix displayed

What is wrong with my kess v2 ? Is there any ways to fix this problem ? Thanks ! "

As we know, the Kess v5.017 is the latest version of ECU Programming Tool Master Version With more stable operation ,and "External exception EEFFACE" Error usually resulted from wrong operation,see fixing methods one by one.

1. Problem Resulted from CD

1.) Pls assure your CD was in good condition,without broken

2.) Software Files didnt come from CD

About this problem,you can redownload v5.017 firmware from http://www.autocardiag.com/kess-v2-5017-223-support-online-for-cars-trucks-no-token-limited-p-599.html and rewritten your update files again and you can give it a shot first,usually it will work.If you still cant fix it,then you can contact the buyer you bought from or directly buy new one from autocardiag.com ,which will provide you a great product with up to date V5.017 firmware .