Obtain the firmware update exe from the official GameSir tutorial page . Connect in Update Mode: Ensure the controller is turned off . Connect one end of the USB cable to the controller.
Connect the controller to your phone (via Bluetooth or USB cable). Gamesir T4 Pro Update Firmware
He tried recalibrating in Windows. He tried swapping the USB cable. Nothing worked. Just as he was about to blame the new game, he remembered a note in the controller’s manual: “For best performance, regularly update your firmware via the GameSir KeyLinker app.” Obtain the firmware update exe from the official