Open your extracted software folder and look for a file named tester.ini . Open it with Notepad. Ensure the port setting matches your assigned Windows COM port (e.g., if Device Manager shows COM3, the file should read Port=COM3 ). Save and close the file. Step 6: Launch the Application
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Before clicking any "Write" or "Change" buttons, always use the Read function to download your stock EEPROM bin file. Save this backup file safely on your computer. If a write operation fails, you can flash the original backup to restore the car to a working state. Open your extracted software folder and look for
Note the assigned COM port number (e.g., COM3) in Device Manager. Step 4: Configure the Virtual COM Port Save and close the file
You must disable antivirus software before downloading or installing the files, as diagnostic tools often contain files that trigger false positives.