Choose "USB" or the specific COM port assigned to your box.
Use the dropdown menu to find the specific Sony model you are working on.
Ensure you are using a fully charged battery in the phone. SETool requires a stable voltage to write to the EROM.
If you are using Windows 10 or 11, the system will often block SETool drivers because they aren't digitally signed by Microsoft. Hold the key and click Restart .
Repeat this process until the "Smart Card Reader" and the "USB Serial Port" are correctly identified without errors. 5. Step 4: Activating the Smart Card
Setting up the requires a bit of patience, especially regarding Windows security settings. However, once the drivers are locked in and the smart card is synced, it is one of the most stable tools for Sony device maintenance.
Don't rely on the CD that may have come in the box; those files are likely years out of date.
