If you have Hyundai Genesis G70 ECU lable : SIM2K- 260 Kefico MCU: TC1793
And you try to read flash data , you have to watch unlocking ECU procedure step, from first try of programmer trying to read data ( led's of power module flashing ) if it failed to unlock , then you have to stop Reading porcedure , Cause repeating the operation will lead to brick the ECU and you get MESSAGE ( Error while processing Ref - 9cb ) this mean you have to replace the ECU,
And Microtronic wiring page not noted this to warn us before we make read operation, I faced this problem and would like to share with others to be warned.
Greetings