Please note that modifying EEPROM data on vehicle ECUs can be risky and may potentially cause issues with the vehicle's performance, safety, or reliability. It is essential to have proper knowledge, experience, and caution when using the VAG EEPROM Programmer 1.20 or any similar device.
VAG EEPROM Programmer 1.20 is a Windows-based desktop utility for reading, editing, and writing EEPROM and microcontroller memory used in Volkswagen Group (VAG) vehicles (VW, Audi, SEAT, Škoda). It supports common EEPROM chips and ECU modules, focusing on mileage correction, immobilizer (immo) adaptation, key learning, and data backup/restore.
Run the executable as an Administrator in Windows XP (Service Pack 3) compatibility mode. vag eeprom programmer 1.20
Because the software was designed during the Windows XP era, modern configurations require specific settings:
You successfully read the BIN file, find your PIN, program your key, and the engine roars to life. Please note that modifying EEPROM data on vehicle
Select the correct COM port and instrument cluster type (e.g., Bosch, Motometer, or Jaeger) within the software. Click .
Turn the vehicle ignition to the position (dash lights illuminated, engine off). Open VAG EEPROM Programmer 1.20. Select the correct COM Port from the software options menu. Set the device type dropdown to Dash . It supports common EEPROM chips and ECU modules,
: It saves new or updated files back to the chip.