hi
i have an me7.1. ecu that someone previously tried to flash a b5 rs4 map onto , i have managed to write a standard file using KTAG and ive used a eeprom dump from a good ecu , but when i connect the ecu to VCDS it doesnt want to communicate with it , also when i wrote the origional file to the ecu it did not display any vin numbers , i assume the vin is stored in the eeprom so this should be present with the good eeprom file written to the ecu ? eeprom was written with a GQ-4X can someone tell me if im missing something here , thanks in advance !

Share your files and we can take a look.