The flashing desktop application (usually called "Upgrade.exe" or "Satlink Tool").

Right-click the downloaded Upgrade.exe utility and select .

Once the update is complete, your Satlink WS-6906 will be loaded with the latest satellite information. Go to the menu of your device and scan to verify that new satellites are appearing.

A specialized 3.5mm jack to RS-232 (serial) cable, which typically comes included in the original retail box.

Once the transfer reaches 100%, the utility will begin flashing the ROM. Wait until you see a success prompt like "Upgrade Success" or "Burn Flash Success".

This comprehensive guide covers everything you need to safely upgrade your Satlink WS6906 software. Prerequisites: What You Need Before Upgrading

Ensure the firmware version matches your specific hardware revision. Using incorrect firmware can cause the "Lock" light to stay on permanently and disable signal measurement.

: If your modern PC doesn't have a COM port, you'll need a reliable adapter.

Go back to Windows Device Manager. Ensure your USB-to-Serial adapter hasn't dynamically changed its COM port number after a reboot.