Source: Google
With Stadia shutting down today, Google has released the online tool it promised could enable Bluetooth support on the Stadia controller. This lets you use the gamepad for your PC, iOS, or Android devices, saving the accessory from being a glorified paperweight. You can visit this page to unlock Bluetooth. The process is simple and easy to follow. You will need to connect your controller to your computer using a USB-C cable and ensure it's charged to at least 10 percent.