Updating controller firmware

Note: The hardware may be purchased separately from the Accessories tab on www.vive.com/product/.

From your computer, open the SteamVR app.
If you see the icon, mouse over it to check if the firmware is out of date. If so, click Update controller firmware.
Using a micro-USB cable, connect the controllers to one of your computer's USB ports one at time.
Once the controller is detected by the SteamVR app, the firmware update will start automatically.

Warning: Do not unplug the micro-USB cable any time before the firmware update is complete. Doing so could result in a firmware error.
When the update is complete, click Done.