Sony has announced you can now update the firmware for the DualSense controller using your PC instead of a PS5 console.
To get started, you will first need to download the Firmware updater for DualSense on your PC and save it to your desktop or other location. You can download it from here.
You will need to make sure you are running Windows 10 (64 bit) or Windows 11 in order for it to work.