Vive FAQ: What can I do to resolve the "‍headset not found"‍ error?

[Mike]

Do the following steps to troubleshoot the issue:

1. 
   
2. Close all Steam apps on your computer, including the SteamVR app.
   
3. Unplug the link box cables (HDMI and USB) from your computer, as well as its power cable from an electric outlet.
   
4. Wait for a few seconds, and then plug the cables back in. On your computer, you might see a notification that drivers are being installed. Wait for the installation to finish.
   
5. Restart the SteamVR app.
   

If you still get a similar error, repeat the steps again. You can also check if you're encountering a USB-related issue. For more details, see My headset can't be detected due to a USB port issue. What should I do?.

For more information, you may refer to the SteamVR Troubleshooting page.