First, thanks for answering.
Immo 3 ECU? I've literally just got over this problem (I've been registered here for years, and have prety much solved all my problems by reading, there is so much info here!). Have you got pin 121 on the ECU powered? I had it mssing on my bench cable and it seemed to work on my immo 2 ECU (29F400) but the first time I tried Immo 3 it refused to flash.
The car is a GTI 6032AR, the ECU is placed in the car and as I said before I read the flash seamlessly with 400bb, the ECU is a INMO 2, but the tachometer is a sport edition INMO 3.
you think the tachometer can be the problem?
patch your cable with the galletto serial number from the thread that daz made "galletto with proper English" with mprog and blind write that bitch. Also with this youll have a bootmode backup if you do brick your ecu.
you think the problem is the cable? because let me read the ecu? if I find another solution I'll do what you say, so also be able to use the bootmode cable ...
Thanks!