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 .
If an update is available, a prompt will display the new version number and release notes. Gamesir T4 Pro Update Firmware
Go to the official GameSir support page and download the latest firmware updater tool for the T4 Pro. Visit the official GameSir T4 Pro Tutorial page