: Resetting the ECU to a "factory new" state so it can be recoded to a different vehicle or key.
If you still want a explanation for a legitimate tool in this category (e.g., IMMO Universal Decoder or similar software), here's a structured breakdown: immo universal decoding windows 10
Includes a massive library of over 1,100 photos to help identify memory chips (EEPROM/MCU) on the board and find correct pinouts. : Resetting the ECU to a "factory new"