Enable Bluetooth on your phone and connect the (typically via Home + Y for Android or Home + B for iOS).
If the controller stops responding during an update, try using an older version of the GameSir App APK from GitHub or the official site to re-initiate the handshake. Gamesir T4 Pro Update Firmware
Disclaimer: Firmware update procedures change. Always refer to the official PDF manual included in the firmware download zip. This article was accurate as of Q3 2025. Enable Bluetooth on your phone and connect the
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If the app doesn't recognize the device, try switching connection modes (e.g., Home + X for PC/DirectInput) and reconnecting.
This is where most users fail. You cannot simply plug the controller in. You must force the controller into DFU (Device Firmware Update) Mode .