Launch X431 X-prog3 Programmer Clone Simo8.51 Tips
Question: Has anyone cloned a Simos 8.51 module ( 2013 Audi A8 ctub) with the Launch X431 Xprog3 ? Successfully backed up the eeprom and flash from the original ECU and loaded it into the donor but the vehicle does not start and has a fault code saying the immobilizer is active and ECU is locked. Even tried it with my topdon phoenix same thing. Additionally when you auto scan the vehicle with the donor module installed it now says EEPROM while Autel IM608II Tablet to pull the VIN. Reason: For Audi ECU you have to navigate to the year make module under scan then special functions-> anti-theft and in there it shows you to pull the original ecu data and the donor data and it needs to be decrypted. Solution: If you went under service and IMMO Prog which doesn’t tell you this and that screwed me up because I corrupted the donor ecu data flashing over it without saving it first lesson learned. I was able to decrypt the original ecu data and program the donor on the ben...