If using Windows 10, you may need to add the software to the Windows DEP (Data Execution Prevention) whitelist to avoid connection issues like "No ECU Found". Compatibility Limits
Windows XP, 7, 8, and 10 (may require "Administrator" rights or DEP white-listing on Win10). Basic Usage Workflow How to fix VAG EEPROM Programmer 'No ECU Found' issue? vag eeprom programmer 119g work
If you swap an ECU (Engine Control Unit), the car will likely not start due to Immobilizer mismatches. The 119g allows you to read the immobilizer data and modify it to accept the new unit, or perform an "Immo Off" procedure (removing the immobilizer requirement entirely—usually for track cars). If using Windows 10, you may need to
