Got a bootmode cable? Even then you dont have the right ECU on hand... how did you break your original? Did you drop it... checksum error perhaps? You need the correct ecu that matches your original or something that is known to be compatible with yours.
yes ,original one i droped and broken, first ,when i buyed 2nd ecu (from passat ) i mounted in my car and car started ! After that i readed his flash , and writed my tuned flash from the original one! And ecu was blocked ,vcds dont see it ,car dont started ,and kess cant read/write it in obd ! I removed it from car ,writed it in boot mode with the software with ecu comes and car started ,0dtcs and obd reading and writing is available mow ,but i dont understand why car dont start with my sw , checksumed in ols ,kess do chksum when you write ! So no chksum problems ,no bad tune problems (i think ) but i dont understand why dont work ... same ecu.s me7.5
