The upgrade process is very easy, follow the following 4 steps, You can upgrade successfully, if you have any other problems when you using this controller, please contact us at any time.
Upgrade the Switch Controller
Step 1: Download the compression package and extract file on PC.
Step 2: Open the file, display the following image.
Step 3: Plug USB cable we offer with the controller into windows pc USB interface (the usb cable must have date transfer function), then vertically press the left joystick, don’t loosen your hands, plug the other interface of USB cable into controller.
Step 4: Wait until the grayed out “Update Firm” option is active, then click the “Update Firm” button to begin upgrade.