Open the downloaded .exe file on your desktop and click "Update Firmware."
Ensure you have "forgotten" the device in your phone's Bluetooth settings before trying to reconnect through the app. Gamesir T4 Pro Update Firmware
Visit the official GameSir T4 Pro Tutorial page and download the latest .exe firmware update file (the latest major update was V1.45 ). Enter Update Mode: Ensure the controller is powered off . Open the downloaded