Gamesir T4 Pro Update Firmware -
Launch the GameSir App (ensure you are using version 5.3.24 or later).
If the firmware becomes unstable, use a thin pin to press the Reset button located in the small hole on the back of the controller to reboot it. Tutorial: How to use GameSir T4 Pro Gamesir T4 Pro Update Firmware
Ensure you have "forgotten" the device in your phone's Bluetooth settings before trying to reconnect through the app. Launch the GameSir App (ensure you are using version 5
Once the progress bar finishes, your controller is updated. This specifically resolves the gyroscope lag often found in older versions. Method 2: Update via Mobile App Gamesir T4 Pro Update Firmware
Put your T4 Pro into pairing mode by pressing A + Home .