Upgrade the Switch Controller
Step 1: please download the compression package for B41 switch controller on your pc with this link, then unzip the upgrade file.
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: Release the left joystick, the “Update Firmware” button will be activated, then click “Update Firmware” on your computer. The upgrade will be completed within 3 seconds.
Step5: When the upgrade process is completed, please disconnect the usb cable from computer and let the controller at power-off status.
Step6: On console, please operate by the following steps to clear all the infamation of controllers : System Settings →Controllers and Sensors→Disconnect Controllers. Then restart the console, enter into interface of Controllers→Change Grip/Order, refer to the instructions for the first-time connnecting method, press Y+HOME keys to connect.